iter-funcs
About
Utility functions for iterators. Inspired by Rust's std::iter::Iterator trait. This library uses JavaScript native iterators, so it's compatible with any library that uses them.
Difference from Array.prototype methods
This library's functions are lazy. They don't evaluate the whole iterator at once. They evaluate only the needed elements. This is useful when you have a large iterator and you only need a few elements from it.
Example
import {
filter,
forEach,
map,
pipe,
take,
} from "https://deno.land/x/[email protected]/mod.ts";
const array = [1, 2, 3, 4, 5, 6];
pipe(
array.values(), // make iterator from array
filter((x) => x % 2 === 0), // filter even numbers
map((x) => x * 2), // multiply by 2
take(2), // take first 2 elements
forEach(console.log), // => 4, 8
);
11 Apr 25, 2022
3 May 18, 2022
4 May 3, 2022
14 Jan 3, 2023
2 Oct 3, 2020
3 Mar 3, 2022
172 Dec 29, 2022
6 Aug 12, 2022
20 Jul 7, 2022
3 Apr 4, 2022
7 Aug 16, 2022
11 Aug 15, 2022
151 Oct 24, 2022
3 Apr 21, 2022
15 Oct 18, 2022
7 Jan 14, 2022
898 Dec 31, 2022
15 Nov 6, 2022
7 Jun 8, 2022