JSFiddle - React, Tailwind, and code Playground
JavaScript
var seeder = function(){
var seed = [];
return {
set:function(length){
if( seed.length > 0 ) return seed;
for( var i = 0; i < length; i++ ){
seed.push(Math.random());
}
return seed;
},
get: function(){
return seed;
},
clear: function(){
seed = [];
}
};
}
function randomShuffle(ar,seed){
var numbers = [];0-51
for( var a = 0, max = ar.length; a < max; a++){
numbers.push(a);
}
var shuffled = [];
for( var i = 0, len = ar.length; i < len; i++ ){
var r = parseInt(seed[i] * (len - i));
shuffled.push(ar[numbers[r]]);
numbers.splice(r,1);
}
return shuffled;
}
var arr = ["a", "b", "c", "d"];
var seed = seeder();
seed.set(arr.length);
console.log(randomShuffle(arr,seed.get()));
console.log(randomShuffle(arr,seed.get()));
console.log(randomShuffle(arr,seed.get()));