Solve js regular matching line break problem implementation code_Basic knowledge

Copy code The code is as follows:

<div id="main">
<div id=”left”>
</div>
<div id=”right”>
php
</div>
</ div> >
The code is as follows:

<div id="main">
<div id="left"></div>

<div id="right"> php </div> </div> If you use JS to write it, how should you write it?

The correct code for JS is as follows:

HTML code:




Copy code

The code is as follows:


<script type="text/javascript">
function getV(){

var str=document.getElementById("regtext").value; var re=/([nr ])(s)*(</div>?(s)*<div) /g; str=str.replace(re,"$3"); alert(str); } </script> <textarea id="regtext" cols="20" rows="20">

<div id="main">

&lt ;div id="left">
</div>
<div id="Div1">
</div>
<div id="Div2"&gt ;
</div>
<div id="right">
php
</div>
</div>
</textarea>
<input type="button" onclick="getV()" value="Test" />