How to shuffle an array randomly

There may be a need to randomly disrupt an array when using JavaScript, and we can use the sort method of the array and the math.random to randomly sort

Const ARR = [0.5- math.random ()] Console.log (arr)

The main use of math.random () to generate a random number with a size comparison of 0.5 to sort, if 0.5-math.random () is greater than or equal to 0, the array of two number of positions unchanged, less than 0 on the swap position.

At first glance this is the result of a random sort, but in fact this sort is not so random. Specific analysis can refer to this article.

A better approach is to use the Fisher–yates shuffle algorithm, which is used here in the following way

Const ARR = [1,2,3,4,5,6]array.prototype.shuffle=function() {  vari = This. Length, J, temp; if(i = = 0)return  This;  while( --i) {j= Math.floor (Math.random () * (i + 1 ) ); Temp= This[i];  This[I] = This[j];  This[j] =temp; }  return  This;} Arr.shuffle ()

Https://stackoverflow.com/questions/2450954/how-to-randomize-shuffle-a-javascript-array

How to shuffle an array randomly