JavaScript version
empty.js
const empty = (arr) => (arr.length = 0);
// Or
arr = [];TypeScript version
empty.ts
const empty = <T,_>(arr: T[]) => (arr.length = 0);
// Or
arr = [];const empty = (arr) => (arr.length = 0);
// Or
arr = [];const empty = <T,_>(arr: T[]) => (arr.length = 0);
// Or
arr = [];