Iterator | /mod.ts | ahh@v0.13.0

Opinionated idiomatic features for TypeScript.

method Iterator.prototype.filter

import { Iterator } from "https://deno.land/x/ahh@v0.13.0/mod.ts";

filter(fn: (item: T) => boolean): Iterator<T>

Creates an Iterator that yields items for which fn returns true.

Examples

Example 1

import { assert } from "../test_deps.ts";
import I from "./iterator.ts";

const odd = (i: number): boolean => i % 2 !== 0;
const iter = I.fromIter([1, 2, 3]).filter(odd);

assert(iter.next() === 1);
assert(iter.next() === 3);

Parameters

fn: (item: T) => boolean

Returns

Iterator<T>