Sum of two numbers with prompt

Question

I\'ve been trying to solve this problem for the last couple days: when I subtract, multiply or divide 2 numbers input through a prompt, everything works fine; but when I wan

Answer 1

You are using concatination operation instead of arithmetic operator.

In your above code:

alert(a + b);

Your browser compiler will assume it as concatination. So it concatinating two strings. That is why you are getting that output.