9 lines
211 B
JavaScript
9 lines
211 B
JavaScript
const sampleSize = ([...arr], n = 1) => {
|
|
let m = arr.length;
|
|
while (m) {
|
|
const i = Math.floor(Math.random() * m--);
|
|
[arr[m], arr[i]] = [arr[i], arr[m]];
|
|
}
|
|
return arr.slice(0, n);
|
|
};
|
|
module.exports = sampleSize |