deepMerge | /collections/deep_merge.ts | std@0.116.0

function deepMerge

import { deepMerge } from "https://dotland.deno.dev/std@0.116.0/collections/deep_merge.ts";

deepMerge<T extends Record<PropertyKey, unknown>>(

record: Partial<Readonly<T>>,

other: Partial<Readonly<T>>,

options?: Readonly<DeepMergeOptions>,

): T

Merges the two given Records, recursively merging any nested Records with the second collection overriding the first in case of conflict

deepMerge<T extends Record<PropertyKey, unknown>, U extends Record<PropertyKey, unknown>, Options extends DeepMergeOptions>(

record: Readonly<T>,

other: Readonly<U>,

options?: Readonly<Options>,

): DeepMerge<T, U, Options>

deepMerge<T extends Record<PropertyKey, unknown>, U extends Record<PropertyKey, unknown>, Options extends DeepMergeOptions = { arrays: "merge"; sets: "merge"; maps: "merge"; }>(

record: Readonly<T>,

other: Readonly<U>,

options?: Readonly<Options>,

): DeepMerge<T, U, Options>

Merges the two given Records, recursively merging any nested Records with the second collection overriding the first in case of conflict

For arrays, maps and sets, a merging strategy can be specified to either "replace" values, or "merge" them instead. Use "includeNonEnumerable" option to include non enumerable properties too.

Example:

import { deepMerge } from "https://deno.land/std@0.116.0/collections/mod.ts";
import { assertEquals } from "https://deno.land/std@0.116.0/testing/asserts.ts";

const a = {foo: true}
const b = {foo: {bar: true}}

assertEquals(deepMerge(a, b), {foo: {bar: true}});