how to add two numbers in javascript

[meganga]

My Code

'''js

function math (firstArg, secondArg, thirdArg) {
var g = secondArg * thirdArg
return g += firstArg;
}
console.log(math('53', '61', '67'));

the output it shows is 408753.
whereas, the solution is 4140.That is 4087+53.
it is joins the numbers rather than adding them.

[hackergrrl]

In javascript, 55 is a number, but '55' is a string. 55 + 12 = 67 '55' + '12' = 5512

[gagandeepp]

hi @gangasingh94160 in js if we using + operation with string variables it perform concatenation of string but if we use any mathematical operator with string it will perform mathematical operation . That's why your code give this output
61*67 = 4087
'4087'+'53'= 408753

To fix this convert the firstarg to number or call your method like this: console.log(math(53, '61', '67'));

If you like this explanation ,please provide thumbsup and close this issue

[stale]

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