javascript random value from array code example
Example 1: javascript get random array value
var colors = ["red","blue","green","yellow"];
var randColor = colors[Math.floor(Math.random() * colors.length)];
Example 2: Javascript get random item from array
var colors = ["red","blue","green","yellow"];
var randomColor = colors[Math.floor(Math.random()*colors.length)];
Example 3: javascript return a random value from an array
const months = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
const randomMonth = months[Math.floor(Math.random() * months.length)];
console.log("random month =>", randomMonth);
Example 4: javascript generate random array
for (var a=[],i=0;i<40;++i) a[i]=i;
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);
Example 5: js random string from array
const randomElement = array[Math.floor(Math.random() * array.length)];