In programming trim is a string manipulation function. It will remove the leading and trailing spaces. JavaScript does not provide the trim functionality by default. Best 3 sample i have provided below, same you can use for trimming the string using javascript.
Sample 1: Using Jquery trim: If you are using jquery, you can use the trim as shown below.
//Below code used to remove the trailing and leading space while checking the string is empty if (jQuery.trim(document.getElementById('txtUserName.ClientID')).length==0)
Sample 2: Another sample for javascript trim. It uses the regex function to trim the string.
//using regex trim String.prototype.trim = function() { return this.replace(/^s+|s+$/g, ''); };
function testTrim(){ var myString = " Iam Sandesh "; alert( myString.trim()); }
Sample 3: Below function return the trimmed string.
function trim(str)
{
str = str.replace(/^s+/,'')
for (var i = str.length; i--;)
if (/S/.test(str.charAt(i)))
return str.substring(0, ++i)
return str
}
function testTrim(){
var myString = " Iam Sandesh ";
alert(trim( myString));
}
Hopes above approaches will helps for newbies. If you have any good idea just add comments.
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