How to remove leading and trailing white spaces from a given html string?

I've the following HTML string. What would be sample code in JavaScript to remove leading and trailing white spaces from this string?

<p>&nbsp;&nbsp;</p>
<div>&nbsp;</div>
Trimming using JavaScript<br />
<br />
<br />
<br />
all leading and trailing white spaces
<p>&nbsp;&nbsp;</p>
<div>&nbsp;</div>

Solution 1:

See the String method trim() - https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/String/Trim

var myString = '  bunch    of <br> string data with<p>trailing</p> and leading space   ';
myString = myString.trim();
// or myString = String.trim(myString);

Edit

As noted in other comments, it is possible to use the regex approach. The trim method is effectively just an alias for a regex:

if(!String.prototype.trim) {  
  String.prototype.trim = function () {  
    return this.replace(/^\s+|\s+$/g,'');  
  };  
} 

... this will inject the method into the native prototype for those browsers who are still swimming in the shallow end of the pool.

Solution 2:

var str = "  my awesome string   "
str.trim();    

for old browsers, use regex

str = str.replace(/^[ ]+|[ ]+$/g,'')
//str = "my awesome string"