How to use the JQuery trim() function into normal Javascript file?

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Hi to all

I am using following line code to trim the unwanted space in string on client side whatever the enduser will type into the textbox

if(document.getElementById("txtUserName").value.trim() == ""){
       ..........
       ..........
}

when this line execute by the browser on clinet side

it shows the error "Object doesn't support this property or method Error"

How to use the trim() function in javascript

Please Help me

Thanks in Advance...

Posted 9-Mar-11 18:08pm

varunkumarid

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Sunasara Imdadhusen · Answer 1 · 2011-03-09T19:34:00

XML

<html>
<head>
  <script src="http://code.jquery.com/jquery-1.5.js"></script>
</head>
<body>
  <button>Show Trim Example</button>
<script>

$("button").click(function () {
var str = "     lots of spaces before and after     ";
alert("'" + str + "'");

str = jQuery.trim(str);
alert("'" + str + "' - no longer");
});

</script>

</body>
</html>

Sandeep Mewara · Answer 2 · 2011-03-09T19:40:00

Solution 2

There are few methods to achieve trim using string object[^].

Declare a string, assign the textbox value to it and then use string methods to achieve trim feature. If needed, assign back the string value to textbox.

Here an example: Javascript string Trim[^]

Posted 9-Mar-11 19:40pm

Sandeep Mewara