Create a method that takes JavaScript code and returns the output of that code.
runJS("3*3/2") ➞ 4.5
String code="
var a=10;
var b=20;
isGreater(a, b);
function isGreater(a, b) {
return a>b
}";
runJS(code) ➞ false
runJS("var =13") ➞ "Error at line:1 col:4"Check the Resources tab if you're stuck.