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js implements the function of copying text files (detailed step-by-step explanation)

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Apr 28, 2018 pm 01:34 PM

javascript Function document

This time I will bring you the function of copying text files in js (detailed step-by-step explanation). What are the precautions for realizing the function of copying text files in js. The following is a practical case, let's take a look.

I recently encountered a need to click a button to copy the text in the

tag to the clipboard

I have copied the contents of the input box before. I thought it was almost the same, but I found that It didn’t work at all

I tried various methods, and finally used a blind trick to achieve the following effect

##1. Principle analysis

The browser provides the copy command, which can copy the selected content

document.execCommand("copy")

Copy after login

If it is an input box, you can use the

select() method, Select the text in the input box, and then call the copy command to copy the text to the clipboard

But the select() method is only valid for and

, but not for <p> <p style="text-align: left;"></p>My final solution is to add a <textarea> to the page and then hide it<p style="text-align: left;"></p>
<p style="text-align: left;">When clicking the button, first remove the <textarea> Change value to the innerText of <p>, and then copy the content in <textarea> <strong></strong></p>
<p style="text-align: left;">2. Code implementation<strong></strong></p>HTML part<p style="text-align: left;"></p>
<div class="code" style="position:relative; padding:0px; margin:0px;"><pre class="brush:php;toolbar:false"><style type="text/css">
  .wrapper {position: relative;}
  #input {position: absolute;top: 0;left: 0;opacity: 0;z-index: -10;}
</style>
<p class="wrapper">
  <p id="text">我把你当兄弟你却想着复制我？</p>
  <textarea id="input">这是幕后黑手</textarea>
  <button onclick="copyText()">copy</button>
</p></pre><div class="contentsignin">Copy after login</div></div> JS part<p style="text-align: left;"></p>
<div class="code" style="position:relative; padding:0px; margin:0px;"><pre class="brush:php;toolbar:false"><script type="text/javascript">
  function copyText() {
   var text = document.getElementById("text").innerText;
   var input = document.getElementById("input");
   input.value = text; // 修改文本框的内容
   input.select(); // 选中文本
   document.execCommand("copy"); // 执行浏览器复制命令
   alert("复制成功");
  }
 </script></pre><div class="contentsignin">Copy after login</div></div>Personal test, Firefox 48.0, Chrome 60.0, IE 8 can all be used<p style="text-align: left;"></p>I believe you have mastered the method after reading the case in this article. For more exciting things, please pay attention to php Chinese Other related articles online! <p></p>Recommended reading: <p></p>
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<p style="text-align: left;">How axios requests cross domains<a href="http://www.php.cn/js-tutorial-394665.html" target="_blank"></a><br></p><p>The above is the detailed content of js implements the function of copying text files (detailed step-by-step explanation). For more information, please follow other related articles on the PHP Chinese website!</p>

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								<p class="Articlelist_txts_p">When deleting or decompressing a folder on your computer, sometimes a prompt dialog box &quot;Error 0x80004005: Unspecified Error&quot; will pop up. How should you solve this situation? There are actually many reasons why the error code 0x80004005 is prompted, but most of them are caused by viruses. We can re-register the dll to solve the problem. Below, the editor will explain to you the experience of handling the 0x80004005 error code. Some users are prompted with error code 0X80004005 when using their computers. The 0x80004005 error is mainly caused by the computer not correctly registering certain dynamic link library files, or by a firewall that does not allow HTTPS connections between the computer and the Internet. So how about</p>
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								<a href="https://www.php.cn/faq/708141.html" title="How to transfer files from Quark Cloud Disk to Baidu Cloud Disk?" class="phphistorical_Version2_mids_img">
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								<a href="https://www.php.cn/faq/708141.html" title="How to transfer files from Quark Cloud Disk to Baidu Cloud Disk?" class="phphistorical_Version2_mids_title">How to transfer files from Quark Cloud Disk to Baidu Cloud Disk?</a>
								<span class="Articlelist_txts_time">Mar 14, 2024 pm	 02:07 PM</span>
								<p class="Articlelist_txts_p">Quark Netdisk and Baidu Netdisk are currently the most commonly used Netdisk software for storing files. If you want to save the files in Quark Netdisk to Baidu Netdisk, how do you do it? In this issue, the editor has compiled the tutorial steps for transferring files from Quark Network Disk computer to Baidu Network Disk. Let’s take a look at how to operate it. How to save Quark network disk files to Baidu network disk? To transfer files from Quark Network Disk to Baidu Network Disk, you first need to download the required files from Quark Network Disk, then select the target folder in the Baidu Network Disk client and open it. Then, drag and drop the files downloaded from Quark Cloud Disk into the folder opened by the Baidu Cloud Disk client, or use the upload function to add the files to Baidu Cloud Disk. Make sure to check whether the file was successfully transferred in Baidu Cloud Disk after the upload is completed. That's it</p>
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								<a href="https://www.php.cn/faq/709046.html" title="What is hiberfil.sys file? Can hiberfil.sys be deleted?" class="phphistorical_Version2_mids_img">
									<img onerror="this.onerror=''; this.src='/static/imghw/default1.png'"
										src="/static/imghw/default1.png" class="lazy"  data-src="https://img.php.cn/upload/article/000/887/227/171046734737865.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="What is hiberfil.sys file? Can hiberfil.sys be deleted?" />
								</a>
								<a href="https://www.php.cn/faq/709046.html" title="What is hiberfil.sys file? Can hiberfil.sys be deleted?" class="phphistorical_Version2_mids_title">What is hiberfil.sys file? Can hiberfil.sys be deleted?</a>
								<span class="Articlelist_txts_time">Mar 15, 2024 am	 09:49 AM</span>
								<p class="Articlelist_txts_p">Recently, many netizens have asked the editor, what is the file hiberfil.sys? Can hiberfil.sys take up a lot of C drive space and be deleted? The editor can tell you that the hiberfil.sys file can be deleted. Let’s take a look at the details below. hiberfil.sys is a hidden file in the Windows system and also a system hibernation file. It is usually stored in the root directory of the C drive, and its size is equivalent to the size of the system's installed memory. This file is used when the computer is hibernated and contains the memory data of the current system so that it can be quickly restored to the previous state during recovery. Since its size is equal to the memory capacity, it may take up a larger amount of hard drive space. hiber</p>
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								<a href="https://www.php.cn/faq/717375.html" title="What exactly is self-media? What are its main features and functions?" class="phphistorical_Version2_mids_img">
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								<a href="https://www.php.cn/faq/717375.html" title="What exactly is self-media? What are its main features and functions?" class="phphistorical_Version2_mids_title">What exactly is self-media? What are its main features and functions?</a>
								<span class="Articlelist_txts_time">Mar 21, 2024 pm	 08:21 PM</span>
								<p class="Articlelist_txts_p">With the rapid development of the Internet, the concept of self-media has become deeply rooted in people's hearts. So, what exactly is self-media? What are its main features and functions? Next, we will explore these issues one by one. 1. What exactly is self-media? We-media, as the name suggests, means you are the media. It refers to an information carrier through which individuals or teams can independently create, edit, publish and disseminate content through the Internet platform. Different from traditional media, such as newspapers, television, radio, etc., self-media is more interactive and personalized, allowing everyone to become a producer and disseminator of information. 2. What are the main features and functions of self-media? 1. Low threshold: The rise of self-media has lowered the threshold for entering the media industry. Cumbersome equipment and professional teams are no longer needed.</p>
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								<a href="https://www.php.cn/faq/716942.html" title="What are the functions of Xiaohongshu account management software? How to operate a Xiaohongshu account?" class="phphistorical_Version2_mids_img">
									<img onerror="this.onerror=''; this.src='/static/imghw/default1.png'"
										src="/static/imghw/default1.png" class="lazy"  data-src="https://img.php.cn/upload/article/000/887/227/171100899550320.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="What are the functions of Xiaohongshu account management software? How to operate a Xiaohongshu account?" />
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								<a href="https://www.php.cn/faq/716942.html" title="What are the functions of Xiaohongshu account management software? How to operate a Xiaohongshu account?" class="phphistorical_Version2_mids_title">What are the functions of Xiaohongshu account management software? How to operate a Xiaohongshu account?</a>
								<span class="Articlelist_txts_time">Mar 21, 2024 pm	 04:16 PM</span>
								<p class="Articlelist_txts_p">As Xiaohongshu becomes popular among young people, more and more people are beginning to use this platform to share various aspects of their experiences and life insights. How to effectively manage multiple Xiaohongshu accounts has become a key issue. In this article, we will discuss some of the features of Xiaohongshu account management software and explore how to better manage your Xiaohongshu account. As social media grows, many people find themselves needing to manage multiple social accounts. This is also a challenge for Xiaohongshu users. Some Xiaohongshu account management software can help users manage multiple accounts more easily, including automatic content publishing, scheduled publishing, data analysis and other functions. Through these tools, users can manage their accounts more efficiently and increase their account exposure and attention. In addition, Xiaohongshu account management software has</p>
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								<a href="https://www.php.cn/faq/708878.html" title="Detailed explanation of the role of .ibd files in MySQL and related precautions" class="phphistorical_Version2_mids_img">
									<img onerror="this.onerror=''; this.src='/static/imghw/default1.png'"
										src="/static/imghw/default1.png" class="lazy"  data-src="https://img.php.cn/upload/article/000/000/164/171046081020995.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="Detailed explanation of the role of .ibd files in MySQL and related precautions" />
								</a>
								<a href="https://www.php.cn/faq/708878.html" title="Detailed explanation of the role of .ibd files in MySQL and related precautions" class="phphistorical_Version2_mids_title">Detailed explanation of the role of .ibd files in MySQL and related precautions</a>
								<span class="Articlelist_txts_time">Mar 15, 2024 am	 08:00 AM</span>
								<p class="Articlelist_txts_p">Detailed explanation of the role of .ibd files in MySQL and related precautions MySQL is a popular relational database management system, and the data in the database is stored in different files. Among them, the .ibd file is a data file in the InnoDB storage engine, used to store data and indexes in tables. This article will provide a detailed analysis of the role of the .ibd file in MySQL and provide relevant code examples to help readers better understand. 1. The role of .ibd files: storing data: .ibd files are InnoDB storage</p>
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								<a href="https://www.php.cn/faq/715271.html" title="Create and run Linux ".a" files" class="phphistorical_Version2_mids_img">
									<img onerror="this.onerror=''; this.src='/static/imghw/default1.png'"
										src="/static/imghw/default1.png" class="lazy"  data-src="https://img.php.cn/upload/article/000/000/164/171092438240149.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="Create and run Linux ".a" files" />
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								<a href="https://www.php.cn/faq/715271.html" title="Create and run Linux ".a" files" class="phphistorical_Version2_mids_title">Create and run Linux ".a" files</a>
								<span class="Articlelist_txts_time">Mar 20, 2024 pm	 04:46 PM</span>
								<p class="Articlelist_txts_p">Working with files in the Linux operating system requires the use of various commands and techniques that enable developers to efficiently create and execute files, code, programs, scripts, and other things. In the Linux environment, files with the extension &quot;.a&quot; have great importance as static libraries. These libraries play an important role in software development, allowing developers to efficiently manage and share common functionality across multiple programs. For effective software development in a Linux environment, it is crucial to understand how to create and run &quot;.a&quot; files. This article will introduce how to comprehensively install and configure the Linux &quot;.a&quot; file. Let's explore the definition, purpose, structure, and methods of creating and executing the Linux &quot;.a&quot; file. What is L</p>
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