Splitting string by whitespace, without empty elements?

Question

I am trying to explode an string using javascript to pick searchterms, whitespace-separated. However I get empty array elements if a searchterm is ended by a whitespace, as

Answer 1

Add function:

//Some browsers support trim so we check for that first
if(!String.prototype.trim) {  
  String.prototype.trim = function () {  
    return this.replace(/^\s+|\s+$/g,'');  
  };  
}

Then call trim on the string:

var strb = "searchterm1 "; // Note the ending whitespace
console.log(strb.trim().split(" ")); // ["searchterm1"]