format number two digits javascript code example

Example 1: javascript format number 2 digits

var numarr = [8, 32, 128]
var formatted = []
//create three numbers of different lengths
numarr.forEach(num => {
  formatted.push(
    num.toLocaleString('en-US', {//this is the function that formats the numbers
      minimumIntegerDigits: 2, //change this to your minimum length
      useGrouping: false
    })
  )
})
//after running this, formatted == [08, 32, 128]

Example 2: javascript two digits number

var myNumber = 7;
var formattedNumber = ("0" + myNumber).slice(-2);
console.log(formattedNumber);