JAVASCRIPT

javascript pick multiple random from array

const list = [1, 2, 3, 4, 5, 6];

// shuffle your list with the sort function:
const shuffledList = list.sort(() => Math.random() - 0.5);
// generate a size for the new list
const newListSize = Math.floor(Math.random() * list.length)
// pick the first "newListSize" elements from "shuffledList"
const newList = shuffledList.slice(0, newListSize)

console.log(newList);
// [3, 2, 6]; [5]; [4, 1, 2, 6, 3, 5]; []; etc..

how to get more than 1 random item in an array javascript

var getMeRandomElements = function(sourceArray, neededElements) {
    var result = [];
    for (var i = 0; i < neededElements; i++) {
        result.push(sourceArray[Math.floor(Math.random()*sourceArray.length)]);
    }
    return result;
}