RegExp to match comma separated hostnames

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[愿得一人] 2021-01-07 04:05

The problem

I\'m trying to validate the content of a </code> using JavaScript, So I created a <code>validate()</code> function, which returns <script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script> <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-5408099190056760" data-ad-slot="7305827575" data-ad-format="auto" data-full-width-responsive="true"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> </div> </div> <div class="fly-panel detail-box" id="flyReply"> <fieldset class="layui-elem-field layui-field-title" style="text-align: center;"> <legend>6条回答</legend> </fieldset> <ul class="jieda" id="jieda"> <li data-id="111" class="jieda-daan"> <a name="item-1111111111"></a> <div class="detail-about detail-about-reply"> <a class="fly-avatar" href=""> <img src="https://www.e-learn.cn/qa/data/avatar/000/00/00/small_000000045.jpg" alt=" 耶瑟儿～ "> </a> <div class="fly-detail-user"> <a href="" class="fly-link"> <cite> 耶瑟儿～</cite> </a> <span>(楼主)</span> </div> <div class="detail-hits"> <span>2021-01-07 04:38</span> </div> </div> <div class="detail-body jieda-body photos"> <p> <pre><code>function validate() { //Get the user input var hostnames = document.getElementById('yourtextarea').value; //Regex to validate hostname var re = new RegExp(/^([a-zA-Z0-9]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])?\.)+[a-zA-Z]{2,6}$/); //Trim whitespace hostnames = hostnames.trim(); //Explode into an array hostnames = hostnames.split(","); //Loop through array & test each hostname with regex var is_valid = true; for (var i=0; i < hostnames.length; i++){ var hostname = hostnames[i].trim(); if (re.test(hostname)) { is_valid = true; //if valid, continue loop } else { is_valid = false; //if invalid, break loop and return false break; } } //end for loop return is_valid; } //end function validate() </code></pre> <p>Matches every example you indicated except "dom-ain.it, domain.com, domain.eu.org.something" because "something" is not valid.</p> <p>JSFiddle: http://jsfiddle.net/nesutqjf/2/</p> </p> <div class="appendcontent"> </div> </div> <div class="jieda-reply"> <span class="jieda-zan button_agree" type="zan" data-id='1648746'> <i class="iconfont icon-zan"></i> <em>0</em> </span> <span type="reply" class="showpinglun" data-id="1648746"> <i class="iconfont icon-svgmoban53"></i> 讨论(0) </span> <div class="jieda-admin"> </div> <div class="noreplaytext bb"> <center><div> <a href="https://www.e-learn.cn/qa/q-682480.html"> 查看其它6个回答 </a> </div></center> </div> </div> <div class="comments-mod " style="display: none; 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