Display numbers up to two decimals places without trailing zeros

Question

In my code I will be accepting multiple values, for example:

8.7456
8.7
8

and I need to have them appear as

8.74
8.7
8
         


        

Answer 1

Multiply by 100, floor, divide by 100.

var n = 8.7456;
var result = Math.floor(n * 100) / 100; // 8.74

Edit: if you’re looking at this question after the fact, this is probably not what you want. It satisfies the odd requirement of having 8.7456 appear as 8.74. See also the relevant comment.