1659706800
沒有日期選擇器的日期範圍過濾器有時會變得複雜,並且用戶總是有可能以不同的格式指定日期。在這種情況下,需要在客戶端或服務器端腳本中處理它。
通過允許 datepicker,用戶只需要選擇給定格式的日期。
日期過濾器有助於生成報告並查看特定日期之間的記錄。
要添加 datepicker,我在示例中使用 datepicker Vue 組件。
在本教程中,我將展示如何使用 Vue.js 和 PHP 按日期過濾記錄。
我employees
在教程示例中使用表格。我在其中添加了一些記錄。
CREATE TABLE `employees` (
`id` int(11) NOT NULL PRIMARY KEY AUTO_INCREMENT,
`emp_name` varchar(80) NOT NULL,
`gender` varchar(10) NOT NULL,
`date_of_join` date NOT NULL,
`email` varchar(80) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
為數據庫配置創建一個config.php
文件。
完成的代碼
<?php
session_start();
$host = "localhost"; /* Host name */$user = "root"; /* User */$password = ""; /* Password */$dbname = "tutorial"; /* Database name */
$con = mysqli_connect($host, $user, $password,$dbname);
// Check connection
if (!$con) {
die("Connection failed: " . mysqli_connect_error());
}
<vuejs-datepicker >
使用組件添加日期選擇器。
為此包括——
<script src="https://unpkg.com/vuejs-datepicker"></script>
我正在使用 Axios 包發送 AJAX 請求。我已將其存儲在項目文件夾中。你可以從這裡下載。
<script src='axios-master/dist/axios.min.js'></script>
從和到日期添加 2 <vuejs-datepicker >
。使用將日期格式設置為“dd/MM/yyyy”format
並添加刪除圖標使用:clear-button="true"
以清除所選日期。設置v-model
並添加closed
調用checkDate()
. 選擇日期後調用此事件。
添加一個在單擊時調用fetchRecords()
方法的按鈕。
用於<table >
列出對像中的記錄employees
。
v-show="recordNotFound"
顯示“未找到記錄” 。<tr>
如果employees
對象為空。
完成的代碼
<script src="vue.js"></script>
<script src='axios-master/dist/axios.min.js'></script>
<script src="https://unpkg.com/vuejs-datepicker"></script>
<style type="text/css">
.inline{
display: inline-block;
}
</style>
<div id='myapp'>
<!-- Date picker -->
<vuejs-datepicker wrapper-class="inline" placeholder="From date" format="dd/MM/yyyy" :clear-button="true" v-model='fromdate' @closed='checkDate();'></vuejs-datepicker>
<vuejs-datepicker wrapper-class="inline" placeholder="To date" format="dd/MM/yyyy" :clear-button="true" v-model='todate' @closed='checkDate();' ></vuejs-datepicker>
<!-- Search Button -->
<input type='button' @click='fetchRecords()' value='Search'>
<br><br>
<!-- List records -->
<table border='1' width='80%' style='border-collapse: collapse;'>
<thead>
<tr>
<th>Employee name</th>
<th>Date of Join</th>
<th>Email</th>
</tr>
</thead>
<tbody>
<tr v-for='employee in employees'>
<td>{{ employee.emp_name }}</td>
<td>{{ employee.date_of_join }}</td>
<td>{{ employee.email }}</td>
</tr>
<tr v-show="recordNotFound">
<td colspan='3'>No record found.</td>
</tr>
</tbody>
</table>
</div>
創建ajaxfile.php
文件。
如果$_GET['fromdate']
並且$_GET['todate']
不為空,則在字段上準備日期搜索查詢並在變量中date_of_join
分配。$condition
用於between
選擇記錄。
employees
從表中獲取記錄。
循環獲取的記錄並將值分配給$response
Array。
以 JSON 格式返回$response
數組。
完成的代碼
<?php
include "config.php";
$condition = "1";
if( (isset($_GET['fromdate']) && $_GET['fromdate'] != '' ) &&
(isset($_GET['todate']) && $_GET['todate'] != '' ) ){
$condition = " date_of_join between '".$_GET['fromdate']."' and '".$_GET['todate']."' ";
}
$userData = mysqli_query($con,"select * from employees WHERE ".$condition );
$response = array();
while($row = mysqli_fetch_assoc($userData)){
$response[] = array(
"id"=>$row['id'],
"emp_name" => $row['emp_name'],
"date_of_join" => $row['date_of_join'],
"email" => $row['email']
);
}
echo json_encode($response);
exit;
在選擇器上初始化 Vue #myapp
。
'ajaxfile.php'
並傳遞fromdate: this.fromdate
和todate: this.todate
作為data
.成功回調時分配response.data
給app.employees
.
如果response.data
為空,則分配給以true
顯示app.recordNotFound
“未找到記錄”。排。
vuejsDatepicker
啟用日期選擇器。完成的代碼
var app = new Vue({
el: '#myapp',
data: {
fromdate: "",
todate: "",
employees: "",
recordNotFound: true
},
methods: {
checkDate: function(){
if(this.fromdate != ''){
var fromdate = new Date(this.fromdate);
var todate = new Date(this.todate);
if(fromdate.getTime() > todate.getTime()){
var currentDate = new Date();
var day = fromdate.getDate();
var month = fromdate.getMonth();
var year = fromdate.getFullYear();
this.todate = new Date(year, month, day);
}
}
},
fetchRecords: function(){
if(this.fromdate !='' && this.todate != ''){
axios.get('ajaxfile.php', {
params: {
fromdate: this.fromdate,
todate: this.todate
}
})
.then(function (response) {
app.employees = response.data;
// Display no record found <tr> if record not found
if(app.employees.length == 0){
app.recordNotFound = true;
}else{
app.recordNotFound = false;
}
})
.catch(function (error) {
console.log(error);
});
}
}
},
components: {
vuejsDatepicker
}
})
要<vuejs-datepicker>
在您的頁面中使用,您需要vuejsDatepicker
在組件選項中定義。使用模型讀取值並傳入 AJAX 請求以獲取記錄。
1625232484
For more than two decades, JavaScript has facilitated businesses to develop responsive web applications for their customers. Used both client and server-side, JavaScript enables you to bring dynamics to pages through expanded functionality and real-time modifications.
Did you know!
According to a web development survey 2020, JavaScript is the most used language for the 8th year, with 67.7% of people choosing it. With this came up several javascript frameworks for frontend, backend development, or even testing.
And one such framework is Vue.Js. It is used to build simple projects and can also be advanced to create sophisticated apps using state-of-the-art tools. Beyond that, some other solid reasons give Vuejs a thumbs up for responsive web application development.
Want to know them? Then follow this blog until the end. Through this article, I will describe all the reasons and benefits of Vue js development. So, stay tuned.
Released in the year 2014 for public use, Vue.Js is an open-source JavaScript framework used to create UIs and single-page applications. It has over 77.4 million likes on Github for creating intuitive web interfaces.
The recent version is Vue.js 2.6, and is the second most preferred framework according to Stack Overflow Developer Survey 2019.
Every Vue.js development company is widely using the framework across the world for responsive web application development. It is centered around the view layer, provides a lot of functionality for the view layer, and builds single-page web applications.
• Vue was ranked #2 in the Front End JavaScript Framework rankings in the State of JS 2019 survey by developers.
• Approximately 427k to 693k sites are built with Vue js, according to Wappalyzer and BuiltWith statistics of June 2020.
• According to the State of JS 2019 survey, 40.5% of JavaScript developers are currently using Vue, while 34.5% have shown keen interest in using it in the future.
• In Stack Overflow's Developer Survey 2020, Vue was ranked the 3rd most popular front-end JavaScript framework.
• High-speed run-time performance
• Vue.Js uses a virtual DOM.
• The main focus is on the core library, while the collaborating libraries handle other features such as global state management and routing.
• Vue.JS provides responsive visual components.
Vue js development has certain benefits, which will encourage you to use it in your projects. For example, Vue.js is similar to Angular and React in many aspects, and it continues to enjoy increasing popularity compared to other frameworks.
The framework is only 20 kilobytes in size, making it easy for you to download files instantly. Vue.js easily beats other frameworks when it comes to loading times and usage.
Take a look at the compelling advantages of using Vue.Js for web app development.
Vue.Js is popular because it allows you to integrate Vue.js into other frameworks such as React, enabling you to customize the project as per your needs and requirements.
It helps you build apps with Vue.js from scratch and introduce Vue.js elements into their existing apps. Due to its ease of integration, Vue.js is becoming a popular choice for web development as it can be used with various existing web applications.
You can feel free to include Vue.js CDN and start using it. Most third-party Vue components and libraries are additionally accessible and supported with the Vue.js CDN.
You don't need to set up node and npm to start using Vue.js. This implies that it helps develop new web applications, just like modifying previous applications.
The diversity of components allows you to create different types of web applications and replace existing frameworks. In addition, you can also choose to hire Vue js developers to use the technology to experiment with many other JavaScript applications.
One of the main reasons for the growing popularity of Vue.Js is that the framework is straightforward to understand for individuals. This means that you can easily add Vue.Js to your web projects.
Also, Vue.Js has a well-defined architecture for storing your data with life-cycle and custom methods. Vue.Js also provides additional features such as watchers, directives, and computed properties, making it extremely easy to build modern apps and web applications with ease.
Another significant advantage of using the Vue.Js framework is that it makes it easy to build small and large-scale web applications in the shortest amount of time.
The VueJS ecosystem is vibrant and well-defined, allowing Vue.Js development company to switch users to VueJS over other frameworks for web app development.
Without spending hours, you can easily find solutions to your problems. Furthermore, VueJs lets you choose only the building blocks you need.
Although the main focus of Vue is the view layer, with the help of Vue Router, Vue Test Utils, Vuex, and Vue CLI, you can find solutions and recommendations for frequently occurring problems.
The problems fall into these categories, and hence it becomes easy for programmers to get started with coding right away and not waste time figuring out how to use these tools.
The Vue ecosystem is easy to customize and scales between a library and a framework. Compared to other frameworks, its development speed is excellent, and it can also integrate different projects. This is the reason why most website development companies also prefer the Vue.Js ecosystem over others.
Another benefit of going with Vue.Js for web app development needs is flexibility. Vue.Js provides an excellent level of flexibility. And makes it easier for web app development companies to write their templates in HTML, JavaScript, or pure JavaScript using virtual nodes.
Another significant benefit of using Vue.Js is that it makes it easier for developers to work with tools like templating engines, CSS preprocessors, and type checking tools like TypeScript.
Vue.Js is an excellent option for you because it encourages two-way communication. This has become possible with the MVVM architecture to handle HTML blocks. In this way, Vue.Js is very similar to Angular.Js, making it easier to handle HTML blocks as well.
With Vue.Js, two-way data binding is straightforward. This means that any changes made by the developer to the UI are passed to the data, and the changes made to the data are reflected in the UI.
This is also one reason why Vue.Js is also known as reactive because it can react to changes made to the data. This sets it apart from other libraries such as React.Js, which are designed to support only one-way communication.
One essential thing is well-defined documentation that helps you understand the required mechanism and build your application with ease. It shows all the options offered by the framework and related best practice examples.
Vue has excellent docs, and its API references are one of the best in the industry. They are well written, clear, and accessible in dealing with everything you need to know to build a Vue application.
Besides, the documentation at Vue.js is constantly improved and updated. It also includes a simple introductory guide and an excellent overview of the API. Perhaps, this is one of the most detailed documentation available for this type of language.
Support for the platform is impressive. In 2018, support continued to impress as every question was answered diligently. Over 6,200 problems were solved with an average resolution time of just six hours.
To support the community, there are frequent release cycles of updated information. Furthermore, the community continues to grow and develop with backend support from developers.
VueJS is an incredible choice for responsive web app development. Since it is lightweight and user-friendly, it builds a fast and integrated web application. The capabilities and potential of VueJS for web app development are extensive.
While Vuejs is simple to get started with, using it to build scalable web apps requires professionalism. Hence, you can approach a top Vue js development company in India to develop high-performing web apps.
Equipped with all the above features, it doesn't matter whether you want to build a small concept app or a full-fledged web app; Vue.Js is the most performant you can rely on.
#vue js development company #vue js development company in india #vue js development company india #vue js development services #vue js development #vue js development companies
1632537859
Not babashka. Node.js babashka!?
Ad-hoc CLJS scripting on Node.js.
Experimental. Please report issues here.
Nbb's main goal is to make it easy to get started with ad hoc CLJS scripting on Node.js.
Additional goals and features are:
Nbb requires Node.js v12 or newer.
CLJS code is evaluated through SCI, the same interpreter that powers babashka. Because SCI works with advanced compilation, the bundle size, especially when combined with other dependencies, is smaller than what you get with self-hosted CLJS. That makes startup faster. The trade-off is that execution is less performant and that only a subset of CLJS is available (e.g. no deftype, yet).
Install nbb
from NPM:
$ npm install nbb -g
Omit -g
for a local install.
Try out an expression:
$ nbb -e '(+ 1 2 3)'
6
And then install some other NPM libraries to use in the script. E.g.:
$ npm install csv-parse shelljs zx
Create a script which uses the NPM libraries:
(ns script
(:require ["csv-parse/lib/sync$default" :as csv-parse]
["fs" :as fs]
["path" :as path]
["shelljs$default" :as sh]
["term-size$default" :as term-size]
["zx$default" :as zx]
["zx$fs" :as zxfs]
[nbb.core :refer [*file*]]))
(prn (path/resolve "."))
(prn (term-size))
(println (count (str (fs/readFileSync *file*))))
(prn (sh/ls "."))
(prn (csv-parse "foo,bar"))
(prn (zxfs/existsSync *file*))
(zx/$ #js ["ls"])
Call the script:
$ nbb script.cljs
"/private/tmp/test-script"
#js {:columns 216, :rows 47}
510
#js ["node_modules" "package-lock.json" "package.json" "script.cljs"]
#js [#js ["foo" "bar"]]
true
$ ls
node_modules
package-lock.json
package.json
script.cljs
Nbb has first class support for macros: you can define them right inside your .cljs
file, like you are used to from JVM Clojure. Consider the plet
macro to make working with promises more palatable:
(defmacro plet
[bindings & body]
(let [binding-pairs (reverse (partition 2 bindings))
body (cons 'do body)]
(reduce (fn [body [sym expr]]
(let [expr (list '.resolve 'js/Promise expr)]
(list '.then expr (list 'clojure.core/fn (vector sym)
body))))
body
binding-pairs)))
Using this macro we can look async code more like sync code. Consider this puppeteer example:
(-> (.launch puppeteer)
(.then (fn [browser]
(-> (.newPage browser)
(.then (fn [page]
(-> (.goto page "https://clojure.org")
(.then #(.screenshot page #js{:path "screenshot.png"}))
(.catch #(js/console.log %))
(.then #(.close browser)))))))))
Using plet
this becomes:
(plet [browser (.launch puppeteer)
page (.newPage browser)
_ (.goto page "https://clojure.org")
_ (-> (.screenshot page #js{:path "screenshot.png"})
(.catch #(js/console.log %)))]
(.close browser))
See the puppeteer example for the full code.
Since v0.0.36, nbb includes promesa which is a library to deal with promises. The above plet
macro is similar to promesa.core/let
.
$ time nbb -e '(+ 1 2 3)'
6
nbb -e '(+ 1 2 3)' 0.17s user 0.02s system 109% cpu 0.168 total
The baseline startup time for a script is about 170ms seconds on my laptop. When invoked via npx
this adds another 300ms or so, so for faster startup, either use a globally installed nbb
or use $(npm bin)/nbb script.cljs
to bypass npx
.
Nbb does not depend on any NPM dependencies. All NPM libraries loaded by a script are resolved relative to that script. When using the Reagent module, React is resolved in the same way as any other NPM library.
To load .cljs
files from local paths or dependencies, you can use the --classpath
argument. The current dir is added to the classpath automatically. So if there is a file foo/bar.cljs
relative to your current dir, then you can load it via (:require [foo.bar :as fb])
. Note that nbb
uses the same naming conventions for namespaces and directories as other Clojure tools: foo-bar
in the namespace name becomes foo_bar
in the directory name.
To load dependencies from the Clojure ecosystem, you can use the Clojure CLI or babashka to download them and produce a classpath:
$ classpath="$(clojure -A:nbb -Spath -Sdeps '{:aliases {:nbb {:replace-deps {com.github.seancorfield/honeysql {:git/tag "v2.0.0-rc5" :git/sha "01c3a55"}}}}}')"
and then feed it to the --classpath
argument:
$ nbb --classpath "$classpath" -e "(require '[honey.sql :as sql]) (sql/format {:select :foo :from :bar :where [:= :baz 2]})"
["SELECT foo FROM bar WHERE baz = ?" 2]
Currently nbb
only reads from directories, not jar files, so you are encouraged to use git libs. Support for .jar
files will be added later.
The name of the file that is currently being executed is available via nbb.core/*file*
or on the metadata of vars:
(ns foo
(:require [nbb.core :refer [*file*]]))
(prn *file*) ;; "/private/tmp/foo.cljs"
(defn f [])
(prn (:file (meta #'f))) ;; "/private/tmp/foo.cljs"
Nbb includes reagent.core
which will be lazily loaded when required. You can use this together with ink to create a TUI application:
$ npm install ink
ink-demo.cljs
:
(ns ink-demo
(:require ["ink" :refer [render Text]]
[reagent.core :as r]))
(defonce state (r/atom 0))
(doseq [n (range 1 11)]
(js/setTimeout #(swap! state inc) (* n 500)))
(defn hello []
[:> Text {:color "green"} "Hello, world! " @state])
(render (r/as-element [hello]))
Working with callbacks and promises can become tedious. Since nbb v0.0.36 the promesa.core
namespace is included with the let
and do!
macros. An example:
(ns prom
(:require [promesa.core :as p]))
(defn sleep [ms]
(js/Promise.
(fn [resolve _]
(js/setTimeout resolve ms))))
(defn do-stuff
[]
(p/do!
(println "Doing stuff which takes a while")
(sleep 1000)
1))
(p/let [a (do-stuff)
b (inc a)
c (do-stuff)
d (+ b c)]
(prn d))
$ nbb prom.cljs
Doing stuff which takes a while
Doing stuff which takes a while
3
Also see API docs.
Since nbb v0.0.75 applied-science/js-interop is available:
(ns example
(:require [applied-science.js-interop :as j]))
(def o (j/lit {:a 1 :b 2 :c {:d 1}}))
(prn (j/select-keys o [:a :b])) ;; #js {:a 1, :b 2}
(prn (j/get-in o [:c :d])) ;; 1
Most of this library is supported in nbb, except the following:
:syms
.-x
notation. In nbb, you must use keywords.See the example of what is currently supported.
See the examples directory for small examples.
Also check out these projects built with nbb:
See API documentation.
See this gist on how to convert an nbb script or project to shadow-cljs.
Prequisites:
To build:
bb release
Run bb tasks
for more project-related tasks.
Download Details:
Author: borkdude
Download Link: Download The Source Code
Official Website: https://github.com/borkdude/nbb
License: EPL-1.0
#node #javascript
1618971133
Vue.js is one of the most used and popular frontend development, or you can say client-side development framework. It is mainly used to develop single-page applications for both web and mobile. Famous companies like GitLab, NASA, Monito, Adobe, Accenture are currently using VueJS.
Do You Know?
Around 3079 companies reportedly use Vue.js in their tech stacks.
At GitHub, VueJS got 180.9K GitHub stars, including 28.5K GitHub forks.
Observing the increasing usage of VueJS and its robust features, various industry verticals are preferring to develop the website and mobile app Frontend using VueJS, and due to this reason, businesses are focusing on hiring VueJS developers from the top Vue.js development companies.
But the major concern of the enterprises is how to find the top companies to avail leading VueJS development service? Let’s move further and know what can help you find the best VueJS companies.
Read More - https://www.valuecoders.com/blog/technology-and-apps/top-10-vuejs-development-companies/
#hire vue js developer #hire vue.js developers #hire vue.js developer, #hire vue.js developers, #vue js development company #vue.js development company
1600583123
In this article, we are going to list out the most popular websites using Vue JS as their frontend framework.
Vue JS is one of those elite progressive JavaScript frameworks that has huge demand in the web development industry. Many popular websites are developed using Vue in their frontend development because of its imperative features.
This framework was created by Evan You and still it is maintained by his private team members. Vue is of course an open-source framework which is based on MVVM concept (Model-view view-Model) and used extensively in building sublime user-interfaces and also considered a prime choice for developing single-page heavy applications.
Released in February 2014, Vue JS has gained 64,828 stars on Github, making it very popular in recent times.
Evan used Angular JS on many operations while working for Google and integrated many features in Vue to cover the flaws of Angular.
“I figured, what if I could just extract the part that I really liked about Angular and build something really lightweight." - Evan You
#vuejs #vue #vue-with-laravel #vue-top-story #vue-3 #build-vue-frontend #vue-in-laravel #vue.js
1624691759
AppClues Infotech is the best & most reliable VueJS App Development Company in USA that builds high-quality and top-notch mobile apps with advanced methodology. The company is focused on providing innovative & technology-oriented solutions as per your specific business needs.
The organization’s VueJS developers have high experience and we have the capability of handling small to big projects. Being one of the leading mobile app development company in USA we are using the latest programming languages and technologies for their clients.
Key Elements:
· Total year of experience - 8+
· Employees Strength - 120+
· Hourly Rate - $25 – $45 / hr
· Location - New York, USA
· Successfully launched projects - 450+
VueJS Development Services by AppClues Infotech
· Custom VueJS Development
· Portal Development Solutions
· Web Application Development
· VueJS Plugin Development
· VueJS Ecommerce Development
· SPA (Single Page App) Development
· VueJS Migration
Why Hire VueJS Developers from AppClues Infotech?
· Agile & Adaptive Development
· 8+ Years of Average Experience
· 100% Transparency
· Guaranteed Bug-free VueJS Solution
· Flexible Engagement Models
· On-Time Project Delivery
· Immediate Technical Support
If you have any project ideas for VueJS app development then share your requirements with AppClues Infotech to get the best solution for your dream projects.
For more info:
Share Yoru Requirements: https://www.appcluesinfotech.com/contact-us/
Email: info@appcluesinfotech.com
Call: +1-978-309-9910**
#top vue.js development company #vue.js app development company #best vue js development company #hire top vue js developers #hire top vue.js developers in usa #vue js development company usa