Adding two integers together - surely it's not that hard!

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Posted on by JonEvans

I need to add two integers together in JavaScript - no matter what I do, I just can't seem to get anything to work. I started with

var varC = $('#varA').val() + $('#varB').val();

This just concatenated them. I then found out that adding .val() returns a string so that would explain it.I tried removing the '.val()' but it didn't return anything. I've tried replacing the 'var' with 'let' but, again, no joy.

I've tried looking for some sort of function that would return what I want but I can't find anything. Can anyone please tell me how I can do this?

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JonEvans 7 on at

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Re: Adding two integers together - surely it's not that hard!

That's worked brilliantly, thank you.
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Fubar 7,960 Super User 2025 Season 1 on at

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Re: Adding two integers together - surely it's not that hard!

If its returning a string you need to convert it to a number in JavaScript
var x = Number("1") + Number("2");
Note: defining variables via "let" just affects the variable scope not its type.