Trying to create an array with a loop and then sum all the contents of the array and put the result as the contents of a DIV but when I run the fiddle I get no result and jshint says everything is well formed. var begin = 500000; var stop = 999999; var arrInt = []; // Create an array worth summing var CreateArray = function (begin,stop) { while(begin < stop +1){ arrInt.push(begin++); } }; // Sum all ints in an array var I