Oscar Oscar - 7 months ago 44
Javascript Question

Get decimal portion of a number with JavaScript

I have float numbers like

3.2
and
1.6
.

I need to separate the number into the integer and decimal part. For example, a value of
3.2
would be split into two numbers, i.e.
3
and
0.2


Getting the integer portion is easy:

n = Math.floor(n);


But I am having trouble getting the decimal portion.
I have tried this:

remainer = n % 2; //obtem a parte decimal do rating


But it does not always work correctly.

The previous code has the following output:

n = 3.1 => remainer = 1.1


What I am missing here?

Answer

Use 1, not 2.

js> 2.3 % 1
0.2999999999999998
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