1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | 7x 7x 5x 5x 2x 8x 4x 8x 7x | import { Collection, asIterable } from './utils' import Sequence from './Sequence' function filter<T>(collection: Collection<T>, fn: (value: T, index: number) => boolean) { const iterable = asIterable(collection) return new Sequence(function* () { let index = 0 for(const value of iterable) { if(fn(value, index++)) { yield value } } }) } export default filter |