### Array pull (mutates array) Use `Array.filter()` and `Array.includes()` to pull out the values that are not needed. Use `Array.length = 0` to mutate the passed in array by resetting it's length to zero and `Array.push()` to re-populate it with only the pulled values. ```js const pull = (arr, ...args) => { let pulled = arr.filter((v, i) => args.includes(v)); arr.length = 0; pulled.forEach(v => arr.push(v)); }; // let myArray = ['a', 'b', 'c', 'a', 'b', 'c']; // pull(myArray, 'a', 'c'); // console.log(myArray) -> [ 'b', 'b' ] ```