javascript round decimal value to 4 digit code example

Example 1: math.round js 1 decimal

var number = 12.3456789;
var rounded = Math.round( number * 10 ) / 10;
// rounded is 12.3

Example 2: javascript convert int to float with 2 decimal places

float_num.toFixed(2);

Example 3: round number 2 decimals javascript

Math.round((num + Number.EPSILON) * 100) / 100