After Addition two variables in javascript returning some garbage values

Question

Hi I have two variables in JS Like:

var a = 223620.42
var b = 1200.1234

I am using Calculation Like:

var c = parseFloat(a) + parseFloat(b);

So the result should be = 224820.5434

But it returning 224820.54340000002

Please Suggest me what I am doing wrong here. Thanks in advance

possible duplicate of [Is floating point math broken?](http://stackoverflow.com/questions/588004/is-floating-point-math-broken) — jasonscript, Jul 20 '15 at 08:06

score 0 · Answer 1 · answered Jul 20 '15 at 08:14

0

Just Round-off the last Values. See the Code Below:

var a = 223620.42
var b = 1200.1234
var c = parseFloat(a) + parseFloat(b);
var numb = c.toFixed(4);
alert(numb);

hope it will solve you problem.

answered Jul 20 '15 at 08:14

Mediasoft

score 0 · Answer 2 · answered Jul 20 '15 at 08:18

0

Try Using "toPrecision" method, and specify the desired length of the number.

var a = 223620.42 var b = 1200.1234 var c = parseFloat(a) + parseFloat(b);

c= c.toPrecision(3)

answered Jul 20 '15 at 08:18

Nishant

it giving result c = 2.2e+5. I want 224820.5434 – Sunil Rawat Jul 20 '15 at 08:44
"toPrecision" will yield scientific notation if there are more integer digits in the number than the specified precision. or you can go with "toFixed". Check this http://stackoverflow.com/questions/3337849/difference-between-tofixed-and-toprecision – Nishant Jul 20 '15 at 09:15

2 Answers2