Sequences

A Sequence is anything you can for…of: an array, a Set, a generator. Most functions here take one and return a generator, so a pipeline does no work until something reads it.

import { Map, Range } from "@pdfking/tfunc"

Array.from(Map(x => x * x, Range(1, 4))) // [1, 4, 9, 16]

• Build: Range, Repeat, Zip
• Transform: Map, DeleteDuplicates, SortBy
• Fold: Reduce, GroupBy, All, Any

The async twins take an AsyncSequence — see Async.