programming-examples/js/Vre1/Alternet of trim function( ) using regular expression.js

function Trim(str)  
{  
  var result;  
  if (typeof str === 'string')   
  {  
    result = str.replace(/^\s+|\s+$/g, '');  
    return result;  
  }  
  else  
  {  
    return false;  
  }  
}  
console.log(Trim(' w3resource '));