round nubmer to 10 digits javascript code example

Example 1: javascript round to 2 decimal places

var subTotal="12.1345";// can also be int, float, string
var subTotalFormatted=parseFloat(subTotal).toFixed(2); //"12.13"

Example 2: rounding number to x decimals javascript

let num = 12.5452411;
num = num.toFixed(3); // 12.545