iter-fun

iter-fun

Fun with Iterables

install

npm install iter-fun

usage

import { getOrCreateIterator } from "iter-fun";
// if the object has an iterator, return it
// if not, create one from the object
const iter = getOrCreateIterator(obj);

import { isArray } from "iter-fun";
isArray([1, 2, 3]); // true

import { hasNext } from "iter-fun";
hasNext({ next: () => {...} }); // true

import { hasIterator } from "iter-fun";
hasIterator({ "@@iterator": ... }); // true

import { hasSymbolIterator } from "iter-fun";
hasSymbolIterator(Array); // true

import { getIterator } from "iter-fun";
const iter = getIterator([1, 2]);
iter.next(); // { value: 1, done: false }
iter.next(); // { value: 2, done: false }
iter.next() // { done: true }

import { createIterator } from "iter-fun";
// obj must have a length property
// and index-addressable data like obj[123]
const iter = createIterator(obj);