You can .split() to get an array of strings, then loop through to convert them to numbers, like this:

var myArray = 14 2.split( );

for(var i=0; i<myArray.length; i++) { myArray[i] = +myArray[i]; } 

//use myArray, it's an array of numbers

The +myArray[i] is just a quick way to do the number conversion, if you're sure they're integers you can just do:

for(var i=0; i<myArray.length; i++) { myArray[i] = parseInt(myArray[i], 10); }