How to do a addition for the number which is in string format

Asked Aug 04 '15 at 15:44

Active Aug 04 '15 at 15:44

Viewed 30 times

I have got a value of 17.439702 .

I want to add 0.222 to the above value .

I was doing it this way

var lat = '17.439702';

 lat = parseFloat(lat)+parseFloat(0.222);

console.log(lat );

But the end result i am getting is

17.661702000000002

But where as i am expecting it as

17.661702

Please tell me how to resolve this

asked Aug 04 '15 at 15:44

Pawan

Looks like your running into a rounding error... – brso05 Aug 04 '15 at 15:45
1

This is how floating-point numbers work; they are inherently imprecise and there isn't much you can do about it. If you want to display the second value, you can always round to the desired number of significant digits. – ssube Aug 04 '15 at 15:46
1

Just round the result to desired precision by `toFixed` method – hindmost Aug 04 '15 at 15:46
that solved , thanks a lot. – Pawan Aug 04 '15 at 15:50

0 Answers0