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

Opinionated idiomatic features for TypeScript.

method Iterator.prototype.fold

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

fold<U>(init: U, fn: (init: U, item: T) => U): U

Consumes this and calls fn on each item to collect them into init.

Examples

Example 1

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

const sum = (a: number, b: number): number => a + b;
const iter = I.fromIter([1, 2, 3]);

assert(iter.fold(0, sum) === 6);

Examples

Type Parameters

Parameters

Returns