How to Create a Star Rating Component in Angular

In this article, we’ll create a simple component in Angular. Have you ever been on a movie or book recommendation website? You probably noticed that they use the popular star rating. It is very common to rate something between zero and five stars. It is a really good exercise for any developer out there. Let’s go over it together in a test-driven way. We’ll have fun. That’s a promise!

#javascript #typescript #angular

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How to Create a Star Rating Component in Angular

Robert E. Hilton

1645520755

How to Create Emoji Star Rating Widget using only HTML & CSS

In this blog you’ll learn how to create Emoji Star Rating Widget using only HTML & CSS.

To create emoji star rating widget using only HTML & CSS. First, you need to create two files one HTML File and another one is CSS File.

1: First, create an HTML file with the name of index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Emoji Stars Rating | Codequs</title>
    <link rel="stylesheet" href="style.css">
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/css/all.min.css"/>
</head>
<body>
  <div class="wrapper">
    <input type="radio" name="rate" id="star-1">
    <input type="radio" name="rate" id="star-2">
    <input type="radio" name="rate" id="star-3">
    <input type="radio" name="rate" id="star-4">
    <input type="radio" name="rate" id="star-5">
    <div class="content">
      <div class="outer">
        <div class="emojis">
          <li class="slideImg"><img src="emojis/emoji-1.png" alt=""></li>
          <li><img src="emojis/emoji-2.png" alt=""></li>
          <li><img src="emojis/emoji-3.png" alt=""></li>
          <li><img src="emojis/emoji-4.png" alt=""></li>
          li><img src="emojis/emoji-5.png" alt=""></li>
        </div>
      </div>
      <div class="stars">
        <label for="star-1" class="star-1 fas fa-star"></label>
        <label for="star-2" class="star-2 fas fa-star"></label>
        <label for="star-3" class="star-3 fas fa-star"></label>
        <label for="star-4" class="star-4 fas fa-star"></label>
        <label for="star-5" class="star-5 fas fa-star"></label>
      </div>
    </div>
    <div class="footer">
      <span class="text"></span>
      <span class="numb"></span>
    </div>
  </div>
</body>
</html>

2: Second, create a CSS file with the name of style.css

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@200;300;400;500;600;700&display=swap');
*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}
body{
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(#FED151, #DE981F);
}
.wrapper{
  background: #f6f6f6;
  max-width: 360px;
  width: 100%;
  border-radius: 10px;
  box-shadow: 0px 10px 15px rgba(0,0,0,0.1);
}
.wrapper .content{
  padding: 30px;
  display: flex;
  align-items: center;
  flex-direction: column;
}
.wrapper .outer{
  height: 135px;
  width: 135px;
  overflow: hidden;
}
.outer .emojis{
  height: 500%;
  display: flex;
  flex-direction: column;
}
.outer .emojis li{
  height: 20%;
  width: 100%;
  list-style: none;
  transition: all 0.3s ease;
}
.outer li img{
  height: 100%;
  width: 100%;
}
#star-2:checked ~ .content .emojis .slideImg{
  margin-top: -135px;
}
#star-3:checked ~ .content .emojis .slideImg{
  margin-top: -270px;
}
#star-4:checked ~ .content .emojis .slideImg{
  margin-top: -405px;
}
#star-5:checked ~ .content .emojis .slideImg{
  margin-top: -540px;
}
.wrapper .stars{
  margin-top: 30px;
}
.stars label{
  font-size: 30px;
  margin: 0 3px;
  color: #ccc;
}
#star-1:hover ~ .content .stars .star-1,
#star-1:checked ~ .content .stars .star-1,
#star-2:hover ~ .content .stars .star-1,
#star-2:hover ~ .content .stars .star-2,
#star-2:checked ~ .content .stars .star-1,
#star-2:checked ~ .content .stars .star-2,
#star-3:hover ~ .content .stars .star-1,
#star-3:hover ~ .content .stars .star-2,
#star-3:hover ~ .content .stars .star-3,
#star-3:checked ~ .content .stars .star-1,
#star-3:checked ~ .content .stars .star-2,
#star-3:checked ~ .content .stars .star-3,
#star-4:hover ~ .content .stars .star-1,
#star-4:hover ~ .content .stars .star-2,
#star-4:hover ~ .content .stars .star-3,
#star-4:hover ~ .content .stars .star-4,
#star-4:checked ~ .content .stars .star-1,
#star-4:checked ~ .content .stars .star-2,
#star-4:checked ~ .content .stars .star-3,
#star-4:checked ~ .content .stars .star-4,
#star-5:hover ~ .content .stars .star-1,
#star-5:hover ~ .content .stars .star-2,
#star-5:hover ~ .content .stars .star-3,
#star-5:hover ~ .content .stars .star-4,
#star-5:hover ~ .content .stars .star-5,
#star-5:checked ~ .content .stars .star-1,
#star-5:checked ~ .content .stars .star-2,
#star-5:checked ~ .content .stars .star-3,
#star-5:checked ~ .content .stars .star-4,
#star-5:checked ~ .content .stars .star-5{
  color: #fd4;
}
.wrapper .footer{
  border-top: 1px solid #ccc;
  background: #f2f2f2;
  width: 100%;
  height: 55px;
  padding: 0 20px;
  border-radius: 0 0 10px 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer span{
  font-size: 17px;
  font-weight: 400;
}
.footer .text::before{
  content: "Rate your experience";
}
.footer .numb::before{
  content: "0 out of 5";
}
#star-1:checked ~ .footer .text::before{
  content: "I just hate it";
}
#star-1:checked ~ .footer .numb::before{
  content: "1 out of 5";
}
#star-2:checked ~ .footer .text::before{
  content: "I don't like it";
}
#star-2:checked ~ .footer .numb::before{
  content: "2 out of 5";
}
#star-3:checked ~ .footer .text::before{
  content: "This is awesome";
}
#star-3:checked ~ .footer .numb::before{
  content: "3 out of 5";
}
#star-4:checked ~ .footer .text::before{
  content: "I just like it";
}
#star-4:checked ~ .footer .numb::before{
  content: "4 out of 5";
}
#star-5:checked ~ .footer .text::before{
  content: "I just love it";
}
#star-5:checked ~ .footer .numb::before{
  content: "5 out of 5";
}
input[type="radio"]{
  display: none;
}

Now you’ve successfully created a Pure CSS Emoji Star Rating Widget.

Easter Deckow

1655630160

PyTumblr: A Python Tumblr API v2 Client

PyTumblr

Installation

Install via pip:

$ pip install pytumblr

Install from source:

$ git clone https://github.com/tumblr/pytumblr.git
$ cd pytumblr
$ python setup.py install

Usage

Create a client

A pytumblr.TumblrRestClient is the object you'll make all of your calls to the Tumblr API through. Creating one is this easy:

client = pytumblr.TumblrRestClient(
    '<consumer_key>',
    '<consumer_secret>',
    '<oauth_token>',
    '<oauth_secret>',
)

client.info() # Grabs the current user information

Two easy ways to get your credentials to are:

The built-in interactive_console.py tool (if you already have a consumer key & secret)
The Tumblr API console at https://api.tumblr.com/console
Get sample login code at https://api.tumblr.com/console/calls/user/info

Supported Methods

User Methods

client.info() # get information about the authenticating user
client.dashboard() # get the dashboard for the authenticating user
client.likes() # get the likes for the authenticating user
client.following() # get the blogs followed by the authenticating user

client.follow('codingjester.tumblr.com') # follow a blog
client.unfollow('codingjester.tumblr.com') # unfollow a blog

client.like(id, reblogkey) # like a post
client.unlike(id, reblogkey) # unlike a post

Blog Methods

client.blog_info(blogName) # get information about a blog
client.posts(blogName, **params) # get posts for a blog
client.avatar(blogName) # get the avatar for a blog
client.blog_likes(blogName) # get the likes on a blog
client.followers(blogName) # get the followers of a blog
client.blog_following(blogName) # get the publicly exposed blogs that [blogName] follows
client.queue(blogName) # get the queue for a given blog
client.submission(blogName) # get the submissions for a given blog

Post Methods

Creating posts

PyTumblr lets you create all of the various types that Tumblr supports. When using these types there are a few defaults that are able to be used with any post type.

The default supported types are described below.

state - a string, the state of the post. Supported types are published, draft, queue, private
tags - a list, a list of strings that you want tagged on the post. eg: ["testing", "magic", "1"]
tweet - a string, the string of the customized tweet you want. eg: "Man I love my mega awesome post!"
date - a string, the customized GMT that you want
format - a string, the format that your post is in. Support types are html or markdown
slug - a string, the slug for the url of the post you want

We'll show examples throughout of these default examples while showcasing all the specific post types.

Creating a photo post

Creating a photo post supports a bunch of different options plus the described default options * caption - a string, the user supplied caption * link - a string, the "click-through" url for the photo * source - a string, the url for the photo you want to use (use this or the data parameter) * data - a list or string, a list of filepaths or a single file path for multipart file upload

#Creates a photo post using a source URL
client.create_photo(blogName, state="published", tags=["testing", "ok"],
                    source="https://68.media.tumblr.com/b965fbb2e501610a29d80ffb6fb3e1ad/tumblr_n55vdeTse11rn1906o1_500.jpg")

#Creates a photo post using a local filepath
client.create_photo(blogName, state="queue", tags=["testing", "ok"],
                    tweet="Woah this is an incredible sweet post [URL]",
                    data="/Users/johnb/path/to/my/image.jpg")

#Creates a photoset post using several local filepaths
client.create_photo(blogName, state="draft", tags=["jb is cool"], format="markdown",
                    data=["/Users/johnb/path/to/my/image.jpg", "/Users/johnb/Pictures/kittens.jpg"],
                    caption="## Mega sweet kittens")

Creating a text post

Creating a text post supports the same options as default and just a two other parameters * title - a string, the optional title for the post. Supports markdown or html * body - a string, the body of the of the post. Supports markdown or html

#Creating a text post
client.create_text(blogName, state="published", slug="testing-text-posts", title="Testing", body="testing1 2 3 4")

Creating a quote post

Creating a quote post supports the same options as default and two other parameter * quote - a string, the full text of the qote. Supports markdown or html * source - a string, the cited source. HTML supported

#Creating a quote post
client.create_quote(blogName, state="queue", quote="I am the Walrus", source="Ringo")

Creating a link post

title - a string, the title of post that you want. Supports HTML entities.
url - a string, the url that you want to create a link post for.
description - a string, the desciption of the link that you have

#Create a link post
client.create_link(blogName, title="I like to search things, you should too.", url="https://duckduckgo.com",
                   description="Search is pretty cool when a duck does it.")

Creating a chat post

Creating a chat post supports the same options as default and two other parameters * title - a string, the title of the chat post * conversation - a string, the text of the conversation/chat, with diablog labels (no html)

#Create a chat post
chat = """John: Testing can be fun!
Renee: Testing is tedious and so are you.
John: Aw.
"""
client.create_chat(blogName, title="Renee just doesn't understand.", conversation=chat, tags=["renee", "testing"])

Creating an audio post

Creating an audio post allows for all default options and a has 3 other parameters. The only thing to keep in mind while dealing with audio posts is to make sure that you use the external_url parameter or data. You cannot use both at the same time. * caption - a string, the caption for your post * external_url - a string, the url of the site that hosts the audio file * data - a string, the filepath of the audio file you want to upload to Tumblr

#Creating an audio file
client.create_audio(blogName, caption="Rock out.", data="/Users/johnb/Music/my/new/sweet/album.mp3")

#lets use soundcloud!
client.create_audio(blogName, caption="Mega rock out.", external_url="https://soundcloud.com/skrillex/sets/recess")

Creating a video post

Creating a video post allows for all default options and has three other options. Like the other post types, it has some restrictions. You cannot use the embed and data parameters at the same time. * caption - a string, the caption for your post * embed - a string, the HTML embed code for the video * data - a string, the path of the file you want to upload

#Creating an upload from YouTube
client.create_video(blogName, caption="Jon Snow. Mega ridiculous sword.",
                    embed="http://www.youtube.com/watch?v=40pUYLacrj4")

#Creating a video post from local file
client.create_video(blogName, caption="testing", data="/Users/johnb/testing/ok/blah.mov")

Editing a post

Updating a post requires you knowing what type a post you're updating. You'll be able to supply to the post any of the options given above for updates.

client.edit_post(blogName, id=post_id, type="text", title="Updated")
client.edit_post(blogName, id=post_id, type="photo", data="/Users/johnb/mega/awesome.jpg")

Reblogging a Post

Reblogging a post just requires knowing the post id and the reblog key, which is supplied in the JSON of any post object.

client.reblog(blogName, id=125356, reblog_key="reblog_key")

Deleting a post

Deleting just requires that you own the post and have the post id

client.delete_post(blogName, 123456) # Deletes your post :(

A note on tags: When passing tags, as params, please pass them as a list (not a comma-separated string):

client.create_text(blogName, tags=['hello', 'world'], ...)

Getting notes for a post

In order to get the notes for a post, you need to have the post id and the blog that it is on.

data = client.notes(blogName, id='123456')

The results include a timestamp you can use to make future calls.

data = client.notes(blogName, id='123456', before_timestamp=data["_links"]["next"]["query_params"]["before_timestamp"])

Tagged Methods

# get posts with a given tag
client.tagged(tag, **params)

Using the interactive console

This client comes with a nice interactive console to run you through the OAuth process, grab your tokens (and store them for future use).

You'll need pyyaml installed to run it, but then it's just:

$ python interactive-console.py

and away you go! Tokens are stored in ~/.tumblr and are also shared by other Tumblr API clients like the Ruby client.

Running tests

The tests (and coverage reports) are run with nose, like this:

python setup.py test

Author: tumblr
Source Code: https://github.com/tumblr/pytumblr
License: Apache-2.0 license

#python #api

Christa Stehr

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.

#angular tutorials #angular cli install #angular environment setup #angular version check #download angular #install angular #install angular cli

Marcelle Smith

1591081592

Create a Component Harness For Your Tests With Angular CDK

Learn how to create and consume a custom component harness using Angular CDK. With a step-by-step case study, we run it in unit tests and end-to-end tests.

Updated for Angular CDK and Angular Material version 9.2.

A component harness is a testing API around an Angular directive or component. Component harnesses can be shared between unit tests, integration tests, and end-to-end tests. They result in less brittle tests as implementation details are hidden from test suites.

#angular #angular-cdk #component-harnesses #testing #angular-material

Roberta Ward

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”.

image for understanding data binding

#angular #javascript #tech blogs #user interface (ui) #angular #angular fundamentals #angular tutorial #basics of angular