### noneBy Returns `true` if the provided predicate function returns `false` for all elements in a collection, `false` otherwise. Use `Array.some()` to test if any elements in the collection return `true` based on `fn`. ```js const noneBy = (arr, fn) => !arr.some(fn); ``` ```js noneBy([0, 1, 3, 0], x => x == 2); // true ```