fixed alert

Author: AlexDvorak

Conversions/DecimalToHex.js

@@ -16,7 +16,7 @@ function decimalToHex(num){
  hex_out.push(intToHex(num%16));
  num = Math.floor(num / 16);
  }
- return intToHex(num) + return hex_out.join("");
+ return intToHex(num) + hex_out.join("");
 }
 
 // test cases