JavaScript Trim() Function

There is no such function in JavaScript to remove the spaces at the beginning and end of the string. But you can use the following approaches to perform Trim operation . 

There are two approaches to Trim String

Trim String Using Javascript Function

// Trim Function call Right Trim and Left Trim function to trim string function trim(myString) {       return LeftTrim(RightTrim(myString)); } function LeftTrim(myString) {       for(var k = 0; k < myString.length && IsWhitespace(myString.charAt(k)); k++);       return myString.substring(k, myString.length); } function RightTrim(myString) {       for(var j=myString.length-1; j>=0 && IsWhitespace(myString.charAt(j)) ; j--) ;       return myString.substring(0,j+1); } function IsWhitespace(charToCheck) {       var whitespaceChars = " \t\n\r\f";       return (whitespaceChars.indexOf(charToCheck) != -1); }

Trim string using Regular Expression

Function Trim(myString)     {         return myString.replace(/^s+/g,'').replace(/s+$/g,'')     }