random index javascript code example

Example 1: get random element from array js

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

Example 2: get random entry from array javascript

const rnd = (arr) => { return arr[Math.floor(Math.random() * arr.length)] };

Example 3: get random item from array javascript

let items = [12, 548 , 'a' , 2 , 5478 , 'foo' , 8852, , 'Doe' , 2145 , 119];

let  randomItem = items[Math.floor(Math.random() * items.length)];

Example 4: get random elements from array javascript

array.sort(() => Math.random() - Math.random()).slice(0, n)

Example 5: 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)