Javascript Trim Functions
Use the code below to make trim a method of all Strings. These are useful to place in a global Javascript file included by all your pages.
String.prototype.trim = function() { return this.replace(/^\s+|\s+$/g,""); } String.prototype.ltrim = function() { return this.replace(/^\s+/,""); } String.prototype.rtrim = function() { return this.replace(/\s+$/,""); } // example of using trim, ltrim, and rtrim var myString = " hello my name is "; alert("*"+myString.trim()+"*"); alert("*"+myString.ltrim()+"*"); alert("*"+myString.rtrim()+"*"); |
Javascript Trim Stand-Alone Functions
If you prefer not to modify the string prototype, then you can use the stand-alone functions below.
function trim(stringToTrim) { return stringToTrim.replace(/^\s+|\s+$/g,""); } function ltrim(stringToTrim) { return stringToTrim.replace(/^\s+/,""); } function rtrim(stringToTrim) { return stringToTrim.replace(/\s+$/,""); } // example of using trim, ltrim, and rtrim var myString = " hello my name is "; alert("*"+trim(myString)+"*"); alert("*"+ltrim(myString)+"*"); alert("*"+rtrim(myString)+"*"); |
