Tuple.updateAt | /core/mod.ts | rimbu@1.2.0

Module

x/rimbu/core/mod.ts>Tuple.updateAt

Rimbu is a TypeScript library focused on immutable, performant, and type-safe collections and other tools.

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function Tuple.updateAt

import { Tuple } from "https://deno.land/x/rimbu@1.2.0/core/mod.ts";
const { updateAt } = Tuple;

updateAt<T extends Tuple.Source, K extends keyof T = keyof T>(

tuple: T,

index: K,

updater: Update<T[K]>,

): T

Returns a copy of the given tuple where the element at given index is updated with the given updater.

Examples

Example 1

const t = Tuple.of(1, 'a', true)
console.log(Tuple.updateAt(t, 1, 'b'))
// => [1, 'b', true]

Type Parameters

T extends Tuple.Source

optional

K extends keyof T = keyof T

Parameters

tuple: T

the source tuple

index: K

the index in the tuple

updater: Update<T[K]>

the updater for the value