Arrays

Remove duplicates from array#

myList = Array.from(new Set(myList))

Randomize array#

Function that randomize an array, affects the original array

function radnomize(array) {
  var count = array.length,
    randomnumber,
    temp
  while (count) {
    randomnumber = (Math.random() * count--) | 0
    temp = array[count]
    array[count] = array[randomnumber]
    array[randomnumber] = temp
  }
}

Function that randomize an array, returns a new array and leave original array unchanged

function radnomize(arr) {
  let array = [...arr]
  let count = array.length,
    randomnumber,
    temp
  while (count) {
    randomnumber = (Math.random() * count--) | 0
    temp = array[count]
    array[count] = array[randomnumber]
    array[randomnumber] = temp
  }
  return array
}