2 decimals in JavaScript with out regular expression and without rounding the numbers [duplicate]

Answer 1

Try with

parseFloat(Math.round(yourNum * 100) / 100).toFixed(2);

Answer 2

The number should not be round.

Use Math.floor to round down and you can use Math.pow to generically set the number of digits.

function trimDP(x, i) {
    var e = Math.pow(10, i || 0);
    return Math.floor(e * x) / e;
}
trimDP(2.45991, 2); // 2.45

If you want this as a String, you need to use .toFixed(i) after so that it doesn't get rounded.

var x = trimDP(2.40001, 2); // 2.4
x.toString(2); // "2.40"

Answer 3

To Fixed

use toFixed(2); for doing that

var num = 2.4;
alert(num.toFixed(2));  will alert 2.40

Answer 4

try this one

 Math.round(num * 100) / 100