首页 > 解决方案 > 我该如何修改我的 html value based on user input</h1> <div id="body"><p>I have a html textarea element in my page where user gives comma separate values. for example below.<br> <code>A-48402,AA,SBAFL,AA+,USD,,</code>&l</p> </div> <div class="container" id="article"> <div class="page-header"> <h1>javascript - 我该如何修改我的<textarea> html value based on user input</h1> <div id="body"><p>I have a html textarea element in my page where user gives comma separate values. for example below.<br> <code>A-48402,AA,SBAFL,AA+,USD,,</code>&l</h1> </div> <div class="con"> <h3>问题描述</h3> <p class="author">标签： <span>javascript</span><span>java</span></div> <h3>解决方案</h3> <hr> <div class="con "> <div class="body"> <p>你可以像这样使用它。</p> <pre><code><p id="demo">Visit Microsoft! ,,</p> <button onclick="myFunction()">Try it</button> <script> function myFunction() { var str = document.getElementById("demo").innerHTML; var res = str.replace(/,,$/, ',Y'); document.getElementById("demo").innerHTML = res; } </script> </code></pre> <p>输出</p> <pre><code>Visit Microsoft! ,Y </code></pre> <p>我想这会对你有所帮助。</p> </div> <div class="clear"></div> </div> <hr> <h3>推荐阅读</h3> <ul> <li><a href="/question/68625217.html">reactjs - 启动 React 应用程序时，docker compose 错误提示 python 文件</a></li><li><a href="/question/68625218.html">flutter - 如何在颤动本地通知中使用特定的图像图标？</a></li><li><a href="/question/68625219.html">javascript - 使用 JavaScript 挑选不重复的随机数</a></li><li><a href="/question/68625220.html">python - 需要类似字节的对象，而不是 'str' ud120</a></li><li><a href="/question/68625227.html">python - 如何使用 bs4 获取 html 的内容</a></li><li><a href="/question/68625234.html">javascript - 选择物理单选按钮时，警报提示中不会显示任何值</a></li><li><a href="/question/68625235.html">encryption - 端到端加密静态网站内容</a></li><li><a href="/question/68625236.html">python - Python lowriter 调用获得与终端不同的结果</a></li><li><a href="/question/68625240.html">lammps - Windows 10 AMMPS 更改 DocumentRoot</a></li><li><a href="/question/68625241.html">google-apps-script - 谷歌表格自动过滤器</a></li> </ul> </div> <footer> <p><a href="/">时间戳在线转换</a></p> </footer> <script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-6117966252207595" crossorigin="anonymous"></script> <script> var _hmt = _hmt || []; (function() { var hm = document.createElement("script"); hm.src = "https://hm.baidu.com/hm.js?7145e10314e5e27e886ad54be2aeb067"; var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(hm, s); })(); </script> </body></html>