Answers for "random array javascript function"

49

javascript get random array value

//get random value from array
var colors = ["red","blue","green","yellow"];
var randColor = colors[Math.floor(Math.random() * colors.length)];
Posted by: Guest on July-31-2019
16

javascript how to get a random element from an array

var items = ['Yes', 'No', 'Maybe'];
var item = items[Math.floor(Math.random() * items.length)];
Posted by: Guest on March-19-2020
3

javascript generate random array

//This example is to generate an array with 40 random elements, with random values from 0 to 39 

for (var a=[],i=0;i<40;++i) a[i]=i;

// http://stackoverflow.com/questions/962802#962890
function shuffle(array) {
  var tmp, current, top = array.length;
  if(top) while(--top) {
    current = Math.floor(Math.random() * (top + 1));
    tmp = array[current];
    array[current] = array[top];
    array[top] = tmp;
  }
  return array;
}

a = shuffle(a);
Posted by: Guest on January-30-2020
1

get random elements from array javascript

array.sort(() => Math.random() - Math.random()).slice(0, n)
Posted by: Guest on September-10-2020

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