Deep.patchAt | /deep/internal.ts | rimbu@0.13.5

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

function Deep.patchAt

import { Deep } from "https://deno.land/x/rimbu@0.13.5/deep/internal.ts";
const { patchAt } = Deep;

patchAt<T, P extends Path.Set<T>, C = Path.Result<T, P>>(

source: T,

path: P,

patchItem: Patch<Path.Result<T, P>, Path.Result<T, P> & C>,

): T

Patches the value at the given path in the source to the given value. Because the path to update must exist in the source object, optional chaining and array indexing is not allowed.

Examples

Example 1

const value = { a: { b: { c: 5 } } };
Deep.patchAt(value, 'a.b.c', v => v + 5);
// => { a: { b: { c: 6 } } }

Type Parameters

P extends Path.Set<T>

optional

C = Path.Result<T, P>

Parameters

source: T

the object to update

path: P

the path in the object to update

patchItem: Patch<Path.Result<T, P>, Path.Result<T, P> & C>

the patch for the value at the given path

Examples

Type Parameters

Parameters

Returns