round to 1 decimal place in 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: round to nearest decimal javascript

round(12345.6789, -1) // 12350
round(12345.6789, -2) // 12300