How Do You Shuffle Through An Array To Generate A Random Number That Doesn't Repeat?

I'm trying to shuffle to generate a random number from an array and splice, but keep getting undefined for the last element that's left in the array. Here, I can generate random nu

Solution 1:

You need to replace the for loop with this:

for (let i = 0; i < called.length; i++){

Solution 2:

Or if you want to do your way, just do:

for (let i = called.length - 1; i => 0; i++)