How to fix 'Concatenation problem' in javaScript

Asked Mar 24 '19 at 04:04

Active Mar 24 '19 at 05:29

Viewed 28 times

I write a function and try to add two number on it, But when I use ' + ' operator between two operators it's concate them. On the other hand if I use '-' operator then no problem. How can I fix it ?

var a = prompt("Enter value of a : ");
var b = prompt("Enter value of b : ");

sum(a, b);

function sum(a, b){
    document.write("A + B = "+ (a+b) );   
}

edited Mar 24 '19 at 05:29

Patrick Roberts

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asked Mar 24 '19 at 04:04

Shuvo3664

2

You just need to parse them to numbers before addition – Code Maniac Mar 24 '19 at 04:06
Edited and solve. Parse the variable to number data types. – Jasim Juwel Mar 24 '19 at 04:16
@MahbuburRahman do _not_ make edits that modify the intent of the original code. With that edit in place, the question no longer even makes sense. – Patrick Roberts Mar 24 '19 at 05:30

How to fix 'Concatenation problem' in javaScript

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