1594519500
Best Loading/Progress Indicator Libraries For Angular
Ngx Loading Bar
A fully automatic loading bar with zero configuration for Angular app (http, http-client and router).
Live Demo: https://aitboudad.github.io/ngx-loading-bar
Ng Http Loader
Smart angular HTTP interceptor - Intercepts automagically HTTP requests and shows a spinkit spinner / loader / progress bar
Angular Svg Round Progressbar
Angular SVG round progressbar
Angular module that uses SVG to create a circular progressbar
Live Demo: http://crisbeto.github.io/angular-svg-round-progressbar/
Angular Loading Bar
The idea is simple: Add a loading bar / progress bar whenever an XHR request goes out in angular. Multiple requests within the same time period get bundled together such that each response increments the progress bar by the appropriate amount.
This is mostly cool because you simply include it in your app, and it works. There’s no complicated setup, and no need to maintain the state of the loading bar; it’s all handled automatically by the interceptor.
Requirements: AngularJS 1.2+
File Size: 2.4Kb minified, 0.5Kb gzipped
Live Demo: https://chieffancypants.github.io/angular-loading-bar/
Ngx Progressbar
A nanoscopic progress bar. Featuring realistic trickle animations to convince your users that something is happening!
Live Demo: https://ngx-progressbar.netlify.com/
Angular Busy
Show busy/loading indicators on any element during $http requests (or any promise).
Live Demo: http://cgross.github.io/angular-busy/demo/
Ngx Spinner
A library for loading spinner for Angular 4/5/6/7/8/9.
Live Demo: https://napster2210.github.io/ngx-spinner/
#angular #angularjs #javascript
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Validate Multi Step Form Using jQuery
In this article, we will see how to validate multi step form wizard using jquery. Here, we will learn to validate the multi step form using jquery. First, we create the multi step form using bootstrap. Also, in this example, we are not using any jquery plugin for multi step form wizard.
So, let's see jquery multi step form with validation, how to create multi step form, multi step form wizard with jquery validation, bootstrap 4 multi step form wizard with validation, multi step form bootstrap 5, and jQuery multi step form with validation and next previous navigation.
Add HTML:
<html lang="en">
</head>
<link href="https://fonts.googleapis.com/css?family=Roboto:400,700&display=swap" rel="stylesheet">
</head>
<body>
<div class="main">
<h3>How To Validate Multi Step Form Using jQuery - Websolutionstuff</h3>
<form id="multistep_form">
<!-- progressbar -->
<ul id="progress_header">
<li class="active"></li>
<li></li>
<li></li>
</ul>
<!-- Step 01 -->
<div class="multistep-box">
<div class="title-box">
<h2>Create your account</h2>
</div>
<p>
<input type="text" name="email" placeholder="Email" id="email">
<span id="error-email"></span>
</p>
<p>
<input type="password" name="pass" placeholder="Password" id="pass">
<span id="error-pass"></span>
</p>
<p>
<input type="password" name="cpass" placeholder="Confirm Password" id="cpass">
<span id="error-cpass"></span>
</p>
<p class="nxt-prev-button"><input type="button" name="next" class="fs_next_btn action-button" value="Next" /></p>
</div>
<!-- Step 02 -->
<div class="multistep-box">
<div class="title-box">
<h2>Social Profiles</h2>
</div>
<p>
<input type="text" name="twitter" placeholder="Twitter" id="twitter">
<span id="error-twitter"></span>
</p>
<p>
<input type="text" name="facebook" placeholder="Facebook" id="facebook">
<span id="error-facebook"></span>
</p>
<p>
<input type="text" name="linkedin" placeholder="Linkedin" id="linkedin">
<span id="error-linkedin"></span>
</p>
<p class="nxt-prev-button">
<input type="button" name="previous" class="previous action-button" value="Previous" />
<input type="button" name="next" class="ss_next_btn action-button" value="Next" />
</p>
</div>
<!-- Step 03 -->
<div class="multistep-box">
<div class="title-box">
<h2>Personal Details</h2>
</div>
<p>
<input type="text" name="fname" placeholder="First Name" id="fname">
<span id="error-fname"></span>
</p>
<p>
<input type="text" name="lname" placeholder="Last Name" id="lname">
<span id="error-lname"></span>
</p>
<p>
<input type="text" name="phone" placeholder="Phone" id="phone">
<span id="error-phone"></span>
</p>
<p>
<textarea name="address" placeholder="Address" id="address"></textarea>
<span id="error-address"></span>
</p>
<p class="nxt-prev-button"><input type="button" name="previous" class="previous action-button" value="Previous" />
<input type="submit" name="submit" class="submit_btn ts_next_btn action-button" value="Submit" />
</p>
</div>
</form>
<h1>You are successfully logged in</h1>
</div>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-easing/1.4.0/jquery.easing.js" type="text/javascript"></script>
</body>
</html>Add CSS:
body {
display: inline-block;
width: 100%;
height: 100vh;
overflow: hidden;
background-image: url("https://img1.akspic.com/image/80377-gadget-numeric_keypad-input_device-electronic_device-space_bar-3840x2160.jpg");
background-repeat: no-repeat;
background-size: cover;
position: relative;
margin: 0;
font-weight: 400;
font-family: 'Roboto', sans-serif;
}
body:before {
content: "";
display: block;
width: 100%;
height: 100%;
background: rgba(0,0,0,0.5);
position: absolute;
left: 0;
right: 0;
top: 0;
bottom: 0;
}
.main {
position: absolute;
left: 0;
right: 0;
top: 30px;
margin: 0 auto;
height: 515px;
}
input:-internal-autofill-selected {
background-color: #fff !important;
}
#multistep_form {
width: 550px;
margin: 0 auto;
text-align: center;
position: relative;
height: 100%;
z-index: 999;
opacity: 1;
visibility: visible;
}
/*progress header*/
#progress_header {
overflow: hidden;
margin: 0 auto 30px;
padding: 0;
}
#progress_header li {
list-style-type: none;
width: 33.33%;
float: left;
position: relative;
font-size: 16px;
font-weight: bold;
font-family: monospace;
color: #fff;
text-transform: uppercase;
}
#progress_header li:after {
width: 35px;
line-height: 35px;
display: block;
font-size: 22px;
color: #888;
font-family: monospace;
background-color: #fff;
border-radius: 100px;
margin: 0 auto;
background-repeat: no-repeat;
font-family: 'Roboto', sans-serif;
}
#progress_header li:nth-child(1):after {
content: "1";
}
#progress_header li:nth-child(2):after {
content: "2";
}
#progress_header li:nth-child(3):after {
content: "3";
}
#progress_header li:before {
content: '';
width: 100%;
height: 5px;
background: #fff;
position: absolute;
left: -50%;
top: 50%;
z-index: -1;
}
#progress_header li:first-child:before {
content: none;
}
#progress_header li.active:before,
#progress_header li.active:after {
background-image: linear-gradient(to right top, #35e8c3, #36edbb, #3df2b2, #4af7a7, #59fb9b) !important;
color: #fff !important;
transition: all 0.5s;
}
/*title*/
.title-box {
width: 100%;
margin: 0 0 30px 0;
}
.title-box h2 {
font-size: 22px;
text-transform: uppercase;
color: #2C3E50;
margin: 0;
font-family: cursive;
display: inline-block;
position: relative;
padding: 0 0 10px 0;
font-family: 'Roboto', sans-serif;
}
.title-box h2:before {
content: "";
background: #6ddc8b;
width: 70px;
height: 2px;
position: absolute;
bottom: 0;
left: 0;
right: 0;
margin: 0 auto;
display: block;
}
.title-box h2:after {
content: "";
background: #6ddc8b;
width: 50px;
height: 2px;
position: absolute;
bottom: -5px;
left: 0;
right: 0;
margin: 0 auto;
display: block;
}
/*Input and Button*/
.multistep-box {
background: white;
border: 0 none;
border-radius: 3px;
box-shadow: 1px 1px 55px 3px rgba(255, 255, 255, 0.4);
padding: 30px 30px;
box-sizing: border-box;
width: 80%;
margin: 0 10%;
position: absolute;
}
.multistep-box:not(:first-of-type) {
display: none;
}
.multistep-box p {
margin: 0 0 12px 0;
text-align: left;
}
.multistep-box span {
font-size: 12px;
color: #FF0000;
}
input, textarea {
padding: 15px;
border: 1px solid #ccc;
border-radius: 3px;
margin: 0;
width: 100%;
box-sizing: border-box;
font-family: 'Roboto', sans-serif;
color: #2C3E50;
font-size: 13px;
transition: all 0.5s;
outline: none;
}
input:focus, textarea:focus {
box-shadow: inset 0px 0px 50px 2px rgb(0,0,0,0.1);
}
input.box_error, textarea.box_error {
border-color: #FF0000;
box-shadow: inset 0px 0px 50px 2px rgb(255,0,0,0.1);
}
input.box_error:focus, textarea.box_error:focus {
box-shadow: inset 0px 0px 50px 2px rgb(255,0,0,0.1);
}
p.nxt-prev-button {
margin: 25px 0 0 0;
text-align: center;
}
.action-button {
width: 100px;
font-weight: bold;
color: white;
border: 0 none;
border-radius: 1px;
cursor: pointer;
padding: 10px 5px;
margin: 0 5px;
background-image: linear-gradient(to right top, #35e8c3, #36edbb, #3df2b2, #4af7a7, #59fb9b);
transition: all 0.5s;
}
.action-button:hover,
.action-button:focus {
box-shadow: 0 0 0 2px white, 0 0 0 3px #6ce199;
}
.form_submited #multistep_form {
opacity: 0;
visibility: hidden;
}
.form_submited h1 {
-webkit-background-clip: text;
transform: translate(0%, 0%);
-webkit-transform: translate(0%, 0%);
transition: all 0.3s ease;
opacity: 1;
visibility: visible;
}
h1 {
margin: 0;
text-align: center;
font-size: 90px;
background-image: linear-gradient(to right top, #35e8c3, #36edbb, #3df2b2, #4af7a7, #59fb9b) !important;
background-image: linear-gradient(to right top, #35e8c3, #36edbb, #3df2b2, #4af7a7, #59fb9b) !important;
color: transparent;
-webkit-background-clip: text;
-webkit-background-clip: text;
transform: translate(0%, -80%);
-webkit-transform: translate(0%, -80%);
transition: all 0.3s ease;
opacity: 0;
visibility: hidden;
position: absolute;
left: 0;
right: 0;
margin: 0 auto;
text-align: center;
top: 50%;
}
h3{
color:#fff;
text-align:center;
margin-bottom:20px;
}Add jQuery:
var current_slide, next_slide, previous_slide;
var left, opacity, scale;
var animation;
var error = false;
// email validation
$("#email").keyup(function() {
var emailReg = /^([\w-\.]+@([\w-]+\.)+[\w-]{2,4})?$/;
if (!emailReg.test($("#email").val())) {
$("#error-email").text('Please enter an Email addres.');
$("#email").addClass("box_error");
error = true;
} else {
$("#error-email").text('');
error = false;
$("#email").removeClass("box_error");
}
});
// password validation
$("#pass").keyup(function() {
var pass = $("#pass").val();
var cpass = $("#cpass").val();
if (pass != '') {
$("#error-pass").text('');
error = false;
$("#pass").removeClass("box_error");
}
if (pass != cpass && cpass != '') {
$("#error-cpass").text('Password and Confirm Password is not matched.');
error = true;
} else {
$("#error-cpass").text('');
error = false;
}
});
// confirm password validation
$("#cpass").keyup(function() {
var pass = $("#pass").val();
var cpass = $("#cpass").val();
if (pass != cpass) {
$("#error-cpass").text('Please enter the same Password as above.');
$("#cpass").addClass("box_error");
error = true;
} else {
$("#error-cpass").text('');
error = false;
$("#cpass").removeClass("box_error");
}
});
// twitter
$("#twitter").keyup(function() {
var twitterReg = /https?:\/\/twitter\.com\/(#!\/)?[a-z0-9_]+$/;
if (!twitterReg.test($("#twitter").val())) {
$("#error-twitter").text('Twitter link is not valid.');
$("#twitter").addClass("box_error");
error = true;
} else {
$("#error-twitter").text('');
error = false;
$("#twitter").removeClass("box_error");
}
});
// facebook
$("#facebook").keyup(function() {
var facebookReg = /^(https?:\/\/)?(www\.)?facebook.com\/[a-zA-Z0-9(\.\?)?]/;
if (!facebookReg.test($("#facebook").val())) {
$("#error-facebook").text('Facebook link is not valid.');
$("#facebook").addClass("box_error");
error = true;
} else {
$("#error-facebook").text('');
error = false;
$("#facebook").removeClass("box_error");
}
});
// linkedin
$("#linkedin").keyup(function() {
var linkedinReg = /(ftp|http|https):\/\/?(?:www\.)?linkedin.com(\w+:{0,1}\w*@)?(\S+)(:([0-9])+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?/;
if (!linkedinReg.test($("#linkedin").val())) {
$("#error-linkedin").text('Linkedin link is not valid.');
$("#linkedin").addClass("box_error");
error = true;
} else {
$("#error-linkedin").text('');
error = false;
$("#linkedin").removeClass("box_error");
}
});
// first name
$("#fname").keyup(function() {
var fname = $("#fname").val();
if (fname == '') {
$("#error-fname").text('Enter your First name.');
$("#fname").addClass("box_error");
error = true;
} else {
$("#error-fname").text('');
error = false;
}
if ((fname.length <= 2) || (fname.length > 20)) {
$("#error-fname").text("User length must be between 2 and 20 Characters.");
$("#fname").addClass("box_error");
error = true;
}
if (!isNaN(fname)) {
$("#error-fname").text("Only Characters are allowed.");
$("#fname").addClass("box_error");
error = true;
} else {
$("#fname").removeClass("box_error");
}
});
// last name
$("#lname").keyup(function() {
var lname = $("#lname").val();
if (lname != lname) {
$("#error-lname").text('Enter your Last name.');
$("#lname").addClass("box_error");
error = true;
} else {
$("#error-lname").text('');
error = false;
}
if ((lname.length <= 2) || (lname.length > 20)) {
$("#error-lname").text("User length must be between 2 and 20 Characters.");
$("#lname").addClass("box_error");
error = true;
}
if (!isNaN(lname)) {
$("#error-lname").text("Only Characters are allowed.");
$("#lname").addClass("box_error");
error = true;
} else {
$("#lname").removeClass("box_error");
}
});
// phone
$("#phone").keyup(function() {
var phone = $("#phone").val();
if (phone != phone) {
$("#error-phone").text('Enter your Phone number.');
$("#phone").addClass("box_error");
error = true;
} else {
$("#error-phone").text('');
error = false;
}
if (phone.length != 10) {
$("#error-phone").text("Mobile number must be of 10 Digits only.");
$("#phone").addClass("box_error");
error = true;
} else {
$("#phone").removeClass("box_error");
}
});
// address
$("#address").keyup(function() {
var address = $("#address").val();
if (address != address) {
$("#error-address").text('Enter your Address.');
$("#address").addClass("box_error");
error = true;
} else {
$("#error-address").text('');
error = false;
$("#address").removeClass("box_error");
}
});
// first step validation
$(".fs_next_btn").click(function() {
// email
if ($("#email").val() == '') {
$("#error-email").text('Please enter an email address.');
$("#email").addClass("box_error");
error = true;
} else {
var emailReg = /^([\w-\.]+@([\w-]+\.)+[\w-]{2,4})?$/;
if (!emailReg.test($("#email").val())) {
$("#error-email").text('Please insert a valid email address.');
error = true;
} else {
$("#error-email").text('');
$("#email").removeClass("box_error");
}
}
// password
if ($("#pass").val() == '') {
$("#error-pass").text('Please enter a password.');
$("#pass").addClass("box_error");
error = true;
}
if ($("#cpass").val() == '') {
$("#error-cpass").text('Please enter a Confirm password.');
$("#cpass").addClass("box_error");
error = true;
} else {
var pass = $("#pass").val();
var cpass = $("#cpass").val();
if (pass != cpass) {
$("#error-cpass").text('Please enter the same password as above.');
error = true;
} else {
$("#error-cpass").text('');
$("#pass").removeClass("box_error");
$("#cpass").removeClass("box_error");
}
}
// animation
if (!error) {
if (animation) return false;
animation = true;
current_slide = $(this).parent().parent();
next_slide = $(this).parent().parent().next();
$("#progress_header li").eq($(".multistep-box").index(next_slide)).addClass("active");
next_slide.show();
current_slide.animate({
opacity: 0
}, {
step: function(now, mx) {
scale = 1 - (1 - now) * 0.2;
left = (now * 50) + "%";
opacity = 1 - now;
current_slide.css({
'transform': 'scale(' + scale + ')'
});
next_slide.css({
'left': left,
'opacity': opacity
});
},
duration: 800,
complete: function() {
current_slide.hide();
animation = false;
},
easing: 'easeInOutBack'
});
}
});
// second step validation
$(".ss_next_btn").click(function() {
// twitter
if ($("#twitter").val() == '') {
$("#error-twitter").text('twitter link is required.');
$("#twitter").addClass("box_error");
error = true;
} else {
var twitterReg = /https?:\/\/twitter\.com\/(#!\/)?[a-z0-9_]+$/;
if (!twitterReg.test($("#twitter").val())) {
$("#error-twitter").text('Twitter link is not valid.');
error = true;
} else {
$("#error-twitter").text('');
$("#twitter").removeClass("box_error");
}
}
// facebook
if ($("#facebook").val() == '') {
$("#error-facebook").text('Facebook link is required.');
$("#facebook").addClass("box_error");
error = true;
} else {
var facebookReg = /^(https?:\/\/)?(www\.)?facebook.com\/[a-zA-Z0-9(\.\?)?]/;
if (!facebookReg.test($("#facebook").val())) {
$("#error-facebook").text('Facebook link is not valid.');
error = true;
$("#facebook").addClass("box_error");
} else {
$("#error-facebook").text('');
}
}
// linkedin
if ($("#linkedin").val() == '') {
$("#error-linkedin").text('Linkedin link is required.');
$("#linkedin").addClass("box_error");
error = true;
} else {
var linkedinReg = /(ftp|http|https):\/\/?(?:www\.)?linkedin.com(\w+:{0,1}\w*@)?(\S+)(:([0-9])+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?/;
if (!linkedinReg.test($("#linkedin").val())) {
$("#error-linkedin").text('Linkedin link is not valid.');
error = true;
} else {
$("#error-linkedin").text('');
$("#linkedin").removeClass("box_error");
}
}
if (!error) {
if (animation) return false;
animation = true;
current_slide = $(this).parent().parent();
next_slide = $(this).parent().parent().next();
$("#progress_header li").eq($(".multistep-box").index(next_slide)).addClass("active");
next_slide.show();
current_slide.animate({
opacity: 0
}, {
step: function(now, mx) {
scale = 1 - (1 - now) * 0.2;
left = (now * 50) + "%";
opacity = 1 - now;
current_slide.css({
'transform': 'scale(' + scale + ')'
});
next_slide.css({
'left': left,
'opacity': opacity
});
},
duration: 800,
complete: function() {
current_slide.hide();
animation = false;
},
easing: 'easeInOutBack'
});
}
});
// third step validation
$(".ts_next_btn").click(function() {
// first name
if ($("#fname").val() == '') {
$("#error-fname").text('Enter your First name.');
$("#fname").addClass("box_error");
error = true;
} else {
var fname = $("#fname").val();
if (fname != fname) {
$("#error-fname").text('First name is required.');
error = true;
} else {
$("#error-fname").text('');
error = false;
$("#fname").removeClass("box_error");
}
if ((fname.length <= 2) || (fname.length > 20)) {
$("#error-fname").text("User length must be between 2 and 20 Characters.");
error = true;
}
if (!isNaN(fname)) {
$("#error-fname").text("Only Characters are allowed.");
error = true;
} else {
$("#fname").removeClass("box_error");
}
}
// last name
if ($("#lname").val() == '') {
$("#error-lname").text('Enter your Last name.');
$("#lname").addClass("box_error");
error = true;
} else {
var lname = $("#lname").val();
if (lname != lname) {
$("#error-lname").text('Last name is required.');
error = true;
} else {
$("#error-lname").text('');
error = false;
}
if ((lname.length <= 2) || (lname.length > 20)) {
$("#error-lname").text("User length must be between 2 and 20 Characters.");
error = true;
}
if (!isNaN(lname)) {
$("#error-lname").text("Only Characters are allowed.");
error = true;
} else {
$("#lname").removeClass("box_error");
}
}
// phone
if ($("#phone").val() == '') {
$("#error-phone").text('Enter your Phone number.');
$("#phone").addClass("box_error");
error = true;
} else {
var phone = $("#phone").val();
if (phone != phone) {
$("#error-phone").text('Phone number is required.');
error = true;
} else {
$("#error-phone").text('');
error = false;
}
if (phone.length != 10) {
$("#error-phone").text("Mobile number must be of 10 Digits only.");
error = true;
} else {
$("#phone").removeClass("box_error");
}
}
// address
if ($("#address").val() == '') {
$("#error-address").text('Enter your Address.');
$("#address").addClass("box_error");
error = true;
} else {
var address = $("#address").val();
if (address != address) {
$("#error-address").text('Address is required.');
error = true;
} else {
$("#error-address").text('');
$("#address").removeClass("box_error");
error = false;
}
}
if (!error) {
if (animation) return false;
animation = true;
current_slide = $(this).parent().parent();
next_slide = $(this).parent().parent().next();
$("#progress_header li").eq($(".multistep-box").index(next_slide)).addClass("active");
next_slide.show();
current_slide.animate({
opacity: 0
}, {
step: function(now, mx) {
scale = 1 - (1 - now) * 0.2;
left = (now * 50) + "%";
opacity = 1 - now;
current_slide.css({
'transform': 'scale(' + scale + ')'
});
next_slide.css({
'left': left,
'opacity': opacity
});
},
duration: 800,
complete: function() {
current_slide.hide();
animation = false;
},
easing: 'easeInOutBack'
});
}
});
// previous
$(".previous").click(function() {
if (animation) return false;
animation = true;
current_slide = $(this).parent().parent();
previous_slide = $(this).parent().parent().prev();
$("#progress_header li").eq($(".multistep-box").index(current_slide)).removeClass("active");
previous_slide.show();
current_slide.animate({
opacity: 0
}, {
step: function(now, mx) {
scale = 0.8 + (1 - now) * 0.2;
left = ((1 - now) * 50) + "%";
opacity = 1 - now;
current_slide.css({
'left': left
});
previous_slide.css({
'transform': 'scale(' + scale + ')',
'opacity': opacity
});
},
duration: 800,
complete: function() {
current_slide.hide();
animation = false;
},
easing: 'easeInOutBack'
});
});
$(".submit_btn").click(function() {
if (!error){
$(".main").addClass("form_submited");
}
return false;
})
Output:
Original article source at: https://websolutionstuff.com/
1647064260
Dotnet Script: Run C# Scripts From The .NET CLI
dotnet script
Run C# scripts from the .NET CLI, define NuGet packages inline and edit/debug them in VS Code - all of that with full language services support from OmniSharp.
NuGet Packages
| Name | Version | Framework(s) |
|---|---|---|
dotnet-script (global tool) |  | net6.0, net5.0, netcoreapp3.1 |
Dotnet.Script (CLI as Nuget) |  | net6.0, net5.0, netcoreapp3.1 |
Dotnet.Script.Core |  | netcoreapp3.1 , netstandard2.0 |
Dotnet.Script.DependencyModel |  | netstandard2.0 |
Dotnet.Script.DependencyModel.Nuget |  | netstandard2.0 |
Installing
Prerequisites
The only thing we need to install is .NET Core 3.1 or .NET 5.0 SDK.
.NET Core Global Tool
.NET Core 2.1 introduced the concept of global tools meaning that you can install dotnet-script using nothing but the .NET CLI.
dotnet tool install -g dotnet-script
You can invoke the tool using the following command: dotnet-script
Tool 'dotnet-script' (version '0.22.0') was successfully installed.
The advantage of this approach is that you can use the same command for installation across all platforms. .NET Core SDK also supports viewing a list of installed tools and their uninstallation.
dotnet tool list -g
Package Id Version Commands
---------------------------------------------
dotnet-script 0.22.0 dotnet-script
dotnet tool uninstall dotnet-script -g
Tool 'dotnet-script' (version '0.22.0') was successfully uninstalled.
Windows
choco install dotnet.script
We also provide a PowerShell script for installation.
(new-object Net.WebClient).DownloadString("https://raw.githubusercontent.com/filipw/dotnet-script/master/install/install.ps1") | iex
Linux and Mac
curl -s https://raw.githubusercontent.com/filipw/dotnet-script/master/install/install.sh | bash
If permission is denied we can try with sudo
curl -s https://raw.githubusercontent.com/filipw/dotnet-script/master/install/install.sh | sudo bash
Docker
A Dockerfile for running dotnet-script in a Linux container is available. Build:
cd build
docker build -t dotnet-script -f Dockerfile ..
And run:
docker run -it dotnet-script --version
Github
You can manually download all the releases in zip format from the GitHub releases page.
Usage
Our typical helloworld.csx might look like this:
Console.WriteLine("Hello world!");
That is all it takes and we can execute the script. Args are accessible via the global Args array.
dotnet script helloworld.csx
Scaffolding
Simply create a folder somewhere on your system and issue the following command.
dotnet script init
This will create main.csx along with the launch configuration needed to debug the script in VS Code.
.
├── .vscode
│ └── launch.json
├── main.csx
└── omnisharp.json
We can also initialize a folder using a custom filename.
dotnet script init custom.csx
Instead of main.csx which is the default, we now have a file named custom.csx.
.
├── .vscode
│ └── launch.json
├── custom.csx
└── omnisharp.json
Note: Executing
dotnet script initinside a folder that already contains one or more script files will not create themain.csxfile.
Running scripts
Scripts can be executed directly from the shell as if they were executables.
foo.csx arg1 arg2 arg3
OSX/Linux
Just like all scripts, on OSX/Linux you need to have a
#!and mark the file as executable via chmod +x foo.csx. If you use dotnet script init to create your csx it will automatically have the#!directive and be marked as executable.
The OSX/Linux shebang directive should be #!/usr/bin/env dotnet-script
#!/usr/bin/env dotnet-script
Console.WriteLine("Hello world");
You can execute your script using dotnet script or dotnet-script, which allows you to pass arguments to control your script execution more.
foo.csx arg1 arg2 arg3
dotnet script foo.csx -- arg1 arg2 arg3
dotnet-script foo.csx -- arg1 arg2 arg3
Passing arguments to scripts
All arguments after -- are passed to the script in the following way:
dotnet script foo.csx -- arg1 arg2 arg3
Then you can access the arguments in the script context using the global Args collection:
foreach (var arg in Args)
{
Console.WriteLine(arg);
}
All arguments before -- are processed by dotnet script. For example, the following command-line
dotnet script -d foo.csx -- -d
will pass the -d before -- to dotnet script and enable the debug mode whereas the -d after -- is passed to script for its own interpretation of the argument.
NuGet Packages
dotnet script has built-in support for referencing NuGet packages directly from within the script.
#r "nuget: AutoMapper, 6.1.0"
Note: Omnisharp needs to be restarted after adding a new package reference
Package Sources
We can define package sources using a NuGet.Config file in the script root folder. In addition to being used during execution of the script, it will also be used by OmniSharp that provides language services for packages resolved from these package sources.
As an alternative to maintaining a local NuGet.Config file we can define these package sources globally either at the user level or at the computer level as described in Configuring NuGet Behaviour
It is also possible to specify packages sources when executing the script.
dotnet script foo.csx -s https://SomePackageSource
Multiple packages sources can be specified like this:
dotnet script foo.csx -s https://SomePackageSource -s https://AnotherPackageSource
Creating DLLs or Exes from a CSX file
Dotnet-Script can create a standalone executable or DLL for your script.
| Switch | Long switch | description |
|---|---|---|
| -o | --output | Directory where the published executable should be placed. Defaults to a 'publish' folder in the current directory. |
| -n | --name | The name for the generated DLL (executable not supported at this time). Defaults to the name of the script. |
| --dll | Publish to a .dll instead of an executable. | |
| -c | --configuration | Configuration to use for publishing the script [Release/Debug]. Default is "Debug" |
| -d | --debug | Enables debug output. |
| -r | --runtime | The runtime used when publishing the self contained executable. Defaults to your current runtime. |
The executable you can run directly independent of dotnet install, while the DLL can be run using the dotnet CLI like this:
dotnet script exec {path_to_dll} -- arg1 arg2
Caching
We provide two types of caching, the dependency cache and the execution cache which is explained in detail below. In order for any of these caches to be enabled, it is required that all NuGet package references are specified using an exact version number. The reason for this constraint is that we need to make sure that we don't execute a script with a stale dependency graph.
Dependency Cache
In order to resolve the dependencies for a script, a dotnet restore is executed under the hood to produce a project.assets.json file from which we can figure out all the dependencies we need to add to the compilation. This is an out-of-process operation and represents a significant overhead to the script execution. So this cache works by looking at all the dependencies specified in the script(s) either in the form of NuGet package references or assembly file references. If these dependencies matches the dependencies from the last script execution, we skip the restore and read the dependencies from the already generated project.assets.json file. If any of the dependencies has changed, we must restore again to obtain the new dependency graph.
Execution cache
In order to execute a script it needs to be compiled first and since that is a CPU and time consuming operation, we make sure that we only compile when the source code has changed. This works by creating a SHA256 hash from all the script files involved in the execution. This hash is written to a temporary location along with the DLL that represents the result of the script compilation. When a script is executed the hash is computed and compared with the hash from the previous compilation. If they match there is no need to recompile and we run from the already compiled DLL. If the hashes don't match, the cache is invalidated and we recompile.
You can override this automatic caching by passing --no-cache flag, which will bypass both caches and cause dependency resolution and script compilation to happen every time we execute the script.
Cache Location
The temporary location used for caches is a sub-directory named dotnet-script under (in order of priority):
- The path specified for the value of the environment variable named
DOTNET_SCRIPT_CACHE_LOCATION, if defined and value is not empty. - Linux distributions only:
$XDG_CACHE_HOMEif defined otherwise$HOME/.cache - macOS only:
~/Library/Caches - The value returned by
Path.GetTempPathfor the platform.
Debugging
The days of debugging scripts using Console.WriteLine are over. One major feature of dotnet script is the ability to debug scripts directly in VS Code. Just set a breakpoint anywhere in your script file(s) and hit F5(start debugging)
Script Packages
Script packages are a way of organizing reusable scripts into NuGet packages that can be consumed by other scripts. This means that we now can leverage scripting infrastructure without the need for any kind of bootstrapping.
Creating a script package
A script package is just a regular NuGet package that contains script files inside the content or contentFiles folder.
The following example shows how the scripts are laid out inside the NuGet package according to the standard convention .
└── contentFiles
└── csx
└── netstandard2.0
└── main.csx
This example contains just the main.csx file in the root folder, but packages may have multiple script files either in the root folder or in subfolders below the root folder.
When loading a script package we will look for an entry point script to be loaded. This entry point script is identified by one of the following.
- A script called
main.csxin the root folder - A single script file in the root folder
If the entry point script cannot be determined, we will simply load all the scripts files in the package.
The advantage with using an entry point script is that we can control loading other scripts from the package.
Consuming a script package
To consume a script package all we need to do specify the NuGet package in the #loaddirective.
The following example loads the simple-targets package that contains script files to be included in our script.
#load "nuget:simple-targets-csx, 6.0.0"
using static SimpleTargets;
var targets = new TargetDictionary();
targets.Add("default", () => Console.WriteLine("Hello, world!"));
Run(Args, targets);
Note: Debugging also works for script packages so that we can easily step into the scripts that are brought in using the
#loaddirective.
Remote Scripts
Scripts don't actually have to exist locally on the machine. We can also execute scripts that are made available on an http(s) endpoint.
This means that we can create a Gist on Github and execute it just by providing the URL to the Gist.
This Gist contains a script that prints out "Hello World"
We can execute the script like this
dotnet script https://gist.githubusercontent.com/seesharper/5d6859509ea8364a1fdf66bbf5b7923d/raw/0a32bac2c3ea807f9379a38e251d93e39c8131cb/HelloWorld.csx
That is a pretty long URL, so why don't make it a TinyURL like this:
dotnet script https://tinyurl.com/y8cda9zt
Script Location
A pretty common scenario is that we have logic that is relative to the script path. We don't want to require the user to be in a certain directory for these paths to resolve correctly so here is how to provide the script path and the script folder regardless of the current working directory.
public static string GetScriptPath([CallerFilePath] string path = null) => path;
public static string GetScriptFolder([CallerFilePath] string path = null) => Path.GetDirectoryName(path);
Tip: Put these methods as top level methods in a separate script file and
#loadthat file wherever access to the script path and/or folder is needed.
REPL
This release contains a C# REPL (Read-Evaluate-Print-Loop). The REPL mode ("interactive mode") is started by executing dotnet-script without any arguments.
The interactive mode allows you to supply individual C# code blocks and have them executed as soon as you press Enter. The REPL is configured with the same default set of assembly references and using statements as regular CSX script execution.
Basic usage
Once dotnet-script starts you will see a prompt for input. You can start typing C# code there.
~$ dotnet script
> var x = 1;
> x+x
2
If you submit an unterminated expression into the REPL (no ; at the end), it will be evaluated and the result will be serialized using a formatter and printed in the output. This is a bit more interesting than just calling ToString() on the object, because it attempts to capture the actual structure of the object. For example:
~$ dotnet script
> var x = new List<string>();
> x.Add("foo");
> x
List<string>(1) { "foo" }
> x.Add("bar");
> x
List<string>(2) { "foo", "bar" }
>
Inline Nuget packages
REPL also supports inline Nuget packages - meaning the Nuget packages can be installed into the REPL from within the REPL. This is done via our #r and #load from Nuget support and uses identical syntax.
~$ dotnet script
> #r "nuget: Automapper, 6.1.1"
> using AutoMapper;
> typeof(MapperConfiguration)
[AutoMapper.MapperConfiguration]
> #load "nuget: simple-targets-csx, 6.0.0";
> using static SimpleTargets;
> typeof(TargetDictionary)
[Submission#0+SimpleTargets+TargetDictionary]
Multiline mode
Using Roslyn syntax parsing, we also support multiline REPL mode. This means that if you have an uncompleted code block and press Enter, we will automatically enter the multiline mode. The mode is indicated by the * character. This is particularly useful for declaring classes and other more complex constructs.
~$ dotnet script
> class Foo {
* public string Bar {get; set;}
* }
> var foo = new Foo();
REPL commands
Aside from the regular C# script code, you can invoke the following commands (directives) from within the REPL:
| Command | Description |
|---|---|
#load | Load a script into the REPL (same as #load usage in CSX) |
#r | Load an assembly into the REPL (same as #r usage in CSX) |
#reset | Reset the REPL back to initial state (without restarting it) |
#cls | Clear the console screen without resetting the REPL state |
#exit | Exits the REPL |
Seeding REPL with a script
You can execute a CSX script and, at the end of it, drop yourself into the context of the REPL. This way, the REPL becomes "seeded" with your code - all the classes, methods or variables are available in the REPL context. This is achieved by running a script with an -i flag.
For example, given the following CSX script:
var msg = "Hello World";
Console.WriteLine(msg);
When you run this with the -i flag, Hello World is printed, REPL starts and msg variable is available in the REPL context.
~$ dotnet script foo.csx -i
Hello World
>
You can also seed the REPL from inside the REPL - at any point - by invoking a #load directive pointed at a specific file. For example:
~$ dotnet script
> #load "foo.csx"
Hello World
>
Piping
The following example shows how we can pipe data in and out of a script.
The UpperCase.csx script simply converts the standard input to upper case and writes it back out to standard output.
using (var streamReader = new StreamReader(Console.OpenStandardInput()))
{
Write(streamReader.ReadToEnd().ToUpper());
}
We can now simply pipe the output from one command into our script like this.
echo "This is some text" | dotnet script UpperCase.csx
THIS IS SOME TEXT
Debugging
The first thing we need to do add the following to the launch.config file that allows VS Code to debug a running process.
{
"name": ".NET Core Attach",
"type": "coreclr",
"request": "attach",
"processId": "${command:pickProcess}"
}
To debug this script we need a way to attach the debugger in VS Code and the simplest thing we can do here is to wait for the debugger to attach by adding this method somewhere.
public static void WaitForDebugger()
{
Console.WriteLine("Attach Debugger (VS Code)");
while(!Debugger.IsAttached)
{
}
}
To debug the script when executing it from the command line we can do something like
WaitForDebugger();
using (var streamReader = new StreamReader(Console.OpenStandardInput()))
{
Write(streamReader.ReadToEnd().ToUpper()); // <- SET BREAKPOINT HERE
}
Now when we run the script from the command line we will get
$ echo "This is some text" | dotnet script UpperCase.csx
Attach Debugger (VS Code)
This now gives us a chance to attach the debugger before stepping into the script and from VS Code, select the .NET Core Attach debugger and pick the process that represents the executing script.
Once that is done we should see our breakpoint being hit.
Configuration(Debug/Release)
By default, scripts will be compiled using the debug configuration. This is to ensure that we can debug a script in VS Code as well as attaching a debugger for long running scripts.
There are however situations where we might need to execute a script that is compiled with the release configuration. For instance, running benchmarks using BenchmarkDotNet is not possible unless the script is compiled with the release configuration.
We can specify this when executing the script.
dotnet script foo.csx -c release
Nullable reference types
Starting from version 0.50.0, dotnet-script supports .Net Core 3.0 and all the C# 8 features. The way we deal with nullable references types in dotnet-script is that we turn every warning related to nullable reference types into compiler errors. This means every warning between CS8600 and CS8655 are treated as an error when compiling the script.
Nullable references types are turned off by default and the way we enable it is using the #nullable enable compiler directive. This means that existing scripts will continue to work, but we can now opt-in on this new feature.
#!/usr/bin/env dotnet-script
#nullable enable
string name = null;
Trying to execute the script will result in the following error
main.csx(5,15): error CS8625: Cannot convert null literal to non-nullable reference type.
We will also see this when working with scripts in VS Code under the problems panel.
Download Details:
Author: filipw
Source Code: https://github.com/filipw/dotnet-script
License: MIT License
1647351133
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The age limit is 18 to 25 years. It may differ from one airline to another!
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- Physical fitness is required of the candidate.
- Eyesight requirements: a minimum of 6/9 vision is required. Many airlines allow applicants to fix their vision to 20/20!
- There should be no history of mental disease in the candidate's past.
- The candidate should not have a significant cardiovascular condition.
You can become an air hostess if you meet certain criteria, such as a minimum educational level, an age limit, language ability, and physical characteristics.
As can be seen from the preceding information, a 10+2 pass is the minimal educational need for becoming an air hostess in India. So, if you have a 10+2 certificate from a recognized board, you are qualified to apply for an interview for air hostess positions!
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1598940617
Install Angular - Angular Environment Setup Process
Angular is a TypeScript based framework that works in synchronization with HTML, CSS, and JavaScript. To work with angular, domain knowledge of these 3 is required.
- Installing Node.js and npm
- Installing Angular CLI
- Creating workspace
- Deploying your First App
In this article, you will get to know about the Angular Environment setup process. After reading this article, you will be able to install, setup, create, and launch your own application in Angular. So let’s start!!!
Install Angular in Easy Steps
For Installing Angular on your Machine, there are 2 prerequisites:
- Node.js
- npm Package Manager
Node.js
First you need to have Node.js installed as Angular require current, active LTS or maintenance LTS version of Node.js
Download and Install Node.js version suitable for your machine’s operating system.
Npm Package Manager
Angular, Angular CLI and Angular applications are dependent on npm packages. By installing Node.js, you have automatically installed the npm Package manager which will be the base for installing angular in your system. To check the presence of npm client and Angular version check of npm client, run this command:
- npm -v
Installing Angular CLI
- Open Terminal/Command Prompt
- To install Angular CLI, run the below command:
- npm install -g @angular/cli
· After executing the command, Angular CLI will get installed within some time. You can check it using the following command
- ng --version
Workspace Creation
Now as your Angular CLI is installed, you need to create a workspace to work upon your application. Methods for it are:
- Using CLI
- Using Visual Studio Code
1. Using CLI
To create a workspace:
- Navigate to the desired directory where you want to create your workspace using cd command in the Terminal/Command prompt
- Then in the directory write this command on your terminal and provide the name of the app which you want to create. In my case I have mentioned DataFlair:
- Ng new YourAppName
- After running this command, it will prompt you to select from various options about the CSS and other functionalities.
- To leave everything to default, simply press the Enter or the Return key.
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1593184320
Basics of Angular: Part-1
What is Angular? What it does? How we implement it in a project? So, here are some basics of angular to let you learn more about angular.
Angular is a Typescript-based open-source front-end web application platform. The Angular Team at Google and a community of individuals and corporations lead it. Angular lets you extend HTML’s syntax to express your apps’ components clearly. The angular resolves challenges while developing a single page and cross-platform applications. So, here the meaning of the single-page applications in angular is that the index.html file serves the app. And, the index.html file links other files to it.
We build angular applications with basic concepts which are NgModules. It provides a compilation context for components. At the beginning of an angular project, the command-line interface provides a built-in component which is the root component. But, NgModule can add a number of additional components. These can be created through a template or loaded from a router. This is what a compilation context about.
What is a Component in Angular?
Components are key features in Angular. It controls a patch of the screen called a view. A couple of components that we create on our own helps to build a whole application. In the end, the root component or the app component holds our entire application. The component has its business logic that it does to support the view inside the class. The class interacts with the view through an API of properties and methods. All the components added by us in the application are not linked to the index.html. But, they link to the app.component.html through the selectors. A component can be a component and not only a typescript class by adding a decorator @Component. Then, for further access, a class can import it. The decorator contains some metadata like selector, template, and style. Here’s an example of how a component decorator looks like:
@Component({
selector: 'app-root',
templateUrl: 'app.component.html',
styleUrls: ['app.component.scss']
})
Role of App Module
Modules are the package of functionalities of our app. It gives Angular the information about which features does my app has and what feature it uses. It is an empty Typescript class, but we transform it by adding a decorator @NgModule. So, we have four properties that we set up on the object pass to @NgModule. The four properties are declarations, imports, providers, and bootstrap. All the built-in new components add up to the declarations array in @NgModule.
@NgModule({
declarations: [
AppComponent,
],
imports: [
BrowserModule,
HttpClientModule,
AppRoutingModule,
FormsModule
],
bootstrap: [AppComponent]
})
What is Data Binding?
Data Binding is the communication between the Typescript code of the component and the template. So, we have different kinds of data binding given below:
- When there is a requirement to output data from our Typescript code in the HTML template. String interpolation handles this purpose like {{data}} in HTML file. Property Binding is also used for this purpose like [property] = “data”.
- When we want to trigger any event like clicking a button. Event Binding works while we react to user events like (event) = “expression”.
- When we can react to user events and output something at the same time. Two-way Binding is used like [(ngModel)] = “data”.
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