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Ground Controller Lvl 1
Message 1 of 2

JavaScript code error

Solved! Go to Solution.
var x = 1;
function add Two(){
var x = x +2;

add Two();
x = x+1;

I am getting an error when i run the code ? I think the answer is 1. Can someone please help ?
1 Reply
Commander Lvl 3
Message 2 of 2

Re: JavaScript code error

Hi @aditikochhar and welcome to the community!


There are several things going on here that is will cause errors:

  • You cannot use spaces in function names. Try renaming your function to addTwo instead of add<space>Two.
  • You re-define x inside your function by using the var keyword. That way, the inside your function is a different x than the x in the first line.

This should fix the errors mostly, however I also do recommend to pass the variable that needs the addition as a function argument as well as giving the variable of the product a different name (for clarity). Your code will look something like this then:


var x = 1;
function addTwo(number) {
  return number + 2;

var y = addTwo(x);
y = y + 1;
console.log(y); // Should print the number 4 (1 + 2 + 1)

Again, these last changes are optional but do improve the quality of the code (at least in my opinion). Please let us know if you have any more questions.


PS: next time, please choose a title that fits the topic and put your code in a code block.

- Mark