[Solved] JavaScript variable from function used outside the function [duplicate]

Question

The problem is that you’ve declared sum inside your function, but then this code hidden away at the bottom of your fiddle tries to use it **outside* the function (It has nothing to do with loops; in fact, I don’t see any loops in your code):

<script>document.getElementById("total").innerHTML=sum</script>

That fails because there is no global sum variable.

You probably want to put that code in your function, rather than in a separate script block unrelated to it. Updated Fiddle That said, it’s unclear why you have both total1 and sum, but my guess is that this code is only part-way complete and total1 will be (in the final version) for just one row, and sum will be for all rows. Or something like that.

Accepted Answer

The problem is that you’ve declared sum inside your function, but then this code hidden away at the bottom of your fiddle tries to use it **outside* the function (It has nothing to do with loops; in fact, I don’t see any loops in your code):

<script>document.getElementById("total").innerHTML=sum</script>

That fails because there is no global sum variable.

You probably want to put that code in your function, rather than in a separate script block unrelated to it. Updated Fiddle That said, it’s unclear why you have both total1 and sum, but my guess is that this code is only part-way complete and total1 will be (in the final version) for just one row, and sum will be for all rows. Or something like that.