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Tip of the Day
Language: JavaScript
Expertise: Beginner
Jul 10, 2000

WEBINAR:

On-Demand

Application Security Testing: An Integral Part of DevOps


Add vs String Concatenate

Question:

I want to force the addition of two numbers in JavaScript, but they always just concatenate. There has to be a simple way to do this that I'm missing. Can you help me out?

Answer:

You can force a string (which is what JavaScript thinks your numbers are) to a number by using the built-in parseInt() method.

int1 = 10
int2 = 20
totalVal = parseInt(int1) + parseInt(int2)
will always give you a numeric result.
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