how to retain the first 2 numbers as is after the decimal point. Javascript

I would like to format my numbers to always display 2 decimal places. lets say: I have a number => 21.268998 , the o/p I’m looking is to chop the rest of the decimal point and keep only the first 2 i.e:

21.26

however with the tofixed or toPrecision approach to always rounds to a certain decimal which is causing issues when a number is 99.999999, it rounds to 100.000 which is not right.

var num1 = "1";
document.getElementById('num1').innerHTML = (Math.round(num1 * 100) / 100).toFixed(2); // this is showing correctly

var num2 = "99.99999";
document.getElementById('num2').innerHTML = (Math.round(num2 * 100) / 100).toFixed(2);// this is incorrect=> I want to show 99.99

any idea how to get the first numbers to show always without rounding them off to the next number.

Jsfiidle:

https://jsfiddle.net/8ohvyczg/1/

>Solution :

Did u tried Math.trunc()?

var num = "99.99999";

var round=(Math.round(num * 100) / 100).toFixed(2)
var trunc=(Math.trunc(num * 100) / 100)
console.log(round);
console.log(trunc);