动态添加& lt; wbr& gt;标点之前的标签 [英] Dynamically add <wbr> tag before punctuation

问题描述

我正在尝试弄清楚如何使用jQuery动态地在电子邮件地址中标点之前添加<wbr>标记.

I'm trying to figure out how to add a <wbr> tag before punctuation in an email address, dynamically using jQuery.

我想象必须有一种方法来扫描字符串中的.".或"@"符号，然后将此标签放在它的前面，但我一直无法弄清楚.

I imagine there must be a way to scan the string for a "." or "@" sign and place this tag right before it, but I haven't been able to figure it out.

我尝试了两种不同的方法，这是我在寻找解决方案后能够提出的唯一解决方案:

I've attempted two different methods which were the only solutions I was able to come up with after searching for solutions:

HTML:

<div class="container">
  <span class="some-special-classname">
    [e-mail]
  </span>

  <br /> <br />
  <button class="test">Test Button</button>
</div>

CSS

wbr:after {
     content:"\00200B";
}

.container {
  margin: 0 auto;
  max-width: 400px;
  padding : 10px;
  border: 1px solid #bbb;
}

JavaScript :(第一次尝试)

$( ".test" ).click(function() {
  $('.some-special-classname').html().replace(/@/g,"<wbr>@");
  $('.some-special-classname').html().replace(/./g,"<wbr>.");
});

JavaScript :(第二次尝试)

var str = $('.some-special-classname').val();
str.replace(/@/g,'<wbr>@');

function myFunction() {
   var str = $('.some-special-classname').val();
   var n = str.indexOf(".");
   document.getElementById("demo").innerHTML = n;
}

推荐答案

可以使用html(function(index, oldhtml)解析和更新现有内容

Can use html(function(index, oldhtml) to parse and update existing content

$('.some-special-classname').html(function(_, oldhtml){
      return oldhtml.replace(/([@.])/g,"<wbr>$1");
});

如果选择器中有多个匹配元素，这还将遍历一个集合并将它们视为实例特定

This will also loop over a collection and treat them as instance specific if there are more than one matching elements in selector

参考: html(fn)文档

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