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shuffle

TS JS Deno

Randomizes the order of the values of an array, returning a new array.

Use the Fisher-Yates algorithm to reorder the elements of the array.

typescript
const shuffle = ([...arr]) => {
let m = arr.length;
while (m) {
const i = Math.floor(Math.random() * m--);
[arr[m], arr[i]] = [arr[i], arr[m]];
}
return arr;
};
typescript
const foo = [1, 2, 3];
shuffle(foo); // [2, 3, 1], foo = [1, 2, 3]