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Module

x/ahh/src/iterator.ts>Iterator#fold

Opinionated idiomatic features for TypeScript.
leonskidev/ahh-ts
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method Iterator.prototype.fold
import { Iterator } from "https://deno.land/x/ahh@v0.12.1/src/iterator.ts";

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

Examples

Example 1

import { default as I } from "./iterator.ts";

const iter = I.iter([1, 2, 3]);

const arr = iter.fold<number[]>([], (arr, i) => {
  arr.push(i);
  return arr;
});

console.log(arr);

Parameters

init: U
fn: (init: U, _: T) => U