How to create a simple publishing function in js-JS Tutorial-php.cn

Home

Web Front-end

JS Tutorial

How to create a simple publishing function in js

小云云

Mar 17, 2018 pm 04:58 PM

javascriptFunctionrelease

This article mainly shares with you how to create a simple publishing function in js, mainly in the form of code. I hope it can help everyone.

The code is as follows:

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>demo</title>
        <link href="https://cdn.bootcss.com/bootstrap/3.3.5/css/bootstrap.css" rel="stylesheet">
        <script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script>
        <style type="text/css">
            .showMessage{
                background-color: #ccc;
                margin-top: 12px;
                padding:20px;
                border-radius: 8px;
            }
        </style>
    </head>
    <body>
        <p class="container" style="padding-top:50px;">
            <p class="col-md-3 message">
                <input type="" class="form-control" name="" id="inpText" placeholder="请输入标题">
                <textarea class="form-control" rows="10" style="margin-top: 20px" id="textaText" placeholder="请输入内容"></textarea>
                <button class="btn btn-primary" style="margin-top:20px " id="button01">提交</button>
            </p>
            <p class="col-md-9 mainMessage" id="right">
                <p class="showMessage">
                    <i>模板</i>
                    <h3 id="标题">标题</h3>
                    <p class="MC">这里是内容</p>
                </p>
            </p>
        </p>
    </body>
</html>

js:

<script type="text/javascript">
        window.onload = function(){
        $(&#39;#button01&#39;).click(function(){
            var inpText = document.getElementById(&#39;inpText&#39;).value;//获取值
            var textaText = document.getElementById(&#39;textaText&#39;).value;//获取值    
            var right = document.getElementById(&#39;right&#39;);
            var p = document.createElement(&#39;p&#39;);//创建一个p
            p.className = &#39;showMessage&#39;;
            var h3 = document.createElement(&#39;h3&#39;);//创建一个h3
            h3.className = "MT";//设置类名
            p.appendChild(h3);//将h3添加到p
            h3.innerHTML = inpText;
            
            var p = document.createElement(&#39;p&#39;);//创建一个p
            p.innerHTML = textaText;
            p.className = "MC";
            p.appendChild(p);
            right.appendChild(p);
            })
        }
</script>

Observe the above js part:

 var inpText = document.getElementById(&#39;inpText&#39;).value;//获取值
 var textaText = document.getElementById(&#39;textaText&#39;).value;//获取值

These two lines of code cannot be placed in front of the following code

 $(&#39;#button01&#39;).click(function(){}

Assume I put it in front. After the page is loaded, I will start to execute the following two lines of code. I will find that the obtained value is empty, so I need to put it in the click function. Only when the button is clicked will I start to obtain the input and textarea. value. (I assume here that you did not assign values to these two tags before writing the code);

 var inpText = document.getElementById(&#39;inpText&#39;).value;//获取值
 var textaText = document.getElementById(&#39;textaText&#39;).value;//获取值

If there are other three tags created:

 var p = document.createElement(&#39;p&#39;);//创建一个p
 var h3 = document.createElement(&#39;h3&#39;);//创建一个h3
 var p = document.createElement(&#39;p&#39;);//创建一个p

must be added to the HTML node among.

p.appendChild(h3);//将h3添加到p
p.appendChild(p);
right.appendChild(p);

In addition, you can also do a post-release review of additions, deletions, and modifications. Use your imagination. Finally~Thank you for reading this article~

The above is the detailed content of How to create a simple publishing function in js. For more information, please follow other related articles on the PHP Chinese website!

Statement

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

From Websites to Apps: The Diverse Applications of JavaScriptApr 22, 2025 am 12:02 AM

JavaScript is widely used in websites, mobile applications, desktop applications and server-side programming. 1) In website development, JavaScript operates DOM together with HTML and CSS to achieve dynamic effects and supports frameworks such as jQuery and React. 2) Through ReactNative and Ionic, JavaScript is used to develop cross-platform mobile applications. 3) The Electron framework enables JavaScript to build desktop applications. 4) Node.js allows JavaScript to run on the server side and supports high concurrent requests.

Python vs. JavaScript: Use Cases and Applications ComparedApr 21, 2025 am 12:01 AM

Python is more suitable for data science and automation, while JavaScript is more suitable for front-end and full-stack development. 1. Python performs well in data science and machine learning, using libraries such as NumPy and Pandas for data processing and modeling. 2. Python is concise and efficient in automation and scripting. 3. JavaScript is indispensable in front-end development and is used to build dynamic web pages and single-page applications. 4. JavaScript plays a role in back-end development through Node.js and supports full-stack development.

The Role of C/C in JavaScript Interpreters and CompilersApr 20, 2025 am 12:01 AM

C and C play a vital role in the JavaScript engine, mainly used to implement interpreters and JIT compilers. 1) C is used to parse JavaScript source code and generate an abstract syntax tree. 2) C is responsible for generating and executing bytecode. 3) C implements the JIT compiler, optimizes and compiles hot-spot code at runtime, and significantly improves the execution efficiency of JavaScript.

JavaScript in Action: Real-World Examples and ProjectsApr 19, 2025 am 12:13 AM

JavaScript's application in the real world includes front-end and back-end development. 1) Display front-end applications by building a TODO list application, involving DOM operations and event processing. 2) Build RESTfulAPI through Node.js and Express to demonstrate back-end applications.

JavaScript and the Web: Core Functionality and Use CasesApr 18, 2025 am 12:19 AM

The main uses of JavaScript in web development include client interaction, form verification and asynchronous communication. 1) Dynamic content update and user interaction through DOM operations; 2) Client verification is carried out before the user submits data to improve the user experience; 3) Refreshless communication with the server is achieved through AJAX technology.

Understanding the JavaScript Engine: Implementation DetailsApr 17, 2025 am 12:05 AM

Understanding how JavaScript engine works internally is important to developers because it helps write more efficient code and understand performance bottlenecks and optimization strategies. 1) The engine's workflow includes three stages: parsing, compiling and execution; 2) During the execution process, the engine will perform dynamic optimization, such as inline cache and hidden classes; 3) Best practices include avoiding global variables, optimizing loops, using const and lets, and avoiding excessive use of closures.

Python vs. JavaScript: The Learning Curve and Ease of UseApr 16, 2025 am 12:12 AM

Python is more suitable for beginners, with a smooth learning curve and concise syntax; JavaScript is suitable for front-end development, with a steep learning curve and flexible syntax. 1. Python syntax is intuitive and suitable for data science and back-end development. 2. JavaScript is flexible and widely used in front-end and server-side programming.

Python vs. JavaScript: Community, Libraries, and ResourcesApr 15, 2025 am 12:16 AM

Python and JavaScript have their own advantages and disadvantages in terms of community, libraries and resources. 1) The Python community is friendly and suitable for beginners, but the front-end development resources are not as rich as JavaScript. 2) Python is powerful in data science and machine learning libraries, while JavaScript is better in front-end development libraries and frameworks. 3) Both have rich learning resources, but Python is suitable for starting with official documents, while JavaScript is better with MDNWebDocs. The choice should be based on project needs and personal interests.

See all articles