how to random item possiple in array in js code example

Example 1: get random element from array js

var item = items[Math.floor(Math.random() * items.length)];

Example 2: get random elements from array javascript

const arr = myArray
      .map((a) => ({sort: Math.random(), value: a}))
      .sort((a, b) => a.sort - b.sort)
      .map((a) => a.value)