Function: extendDeep()

function extendDeep(parent, child?): ObjectType<any>;

Recursively extends an object by deeply copying properties from parent to child. 通过将属性从父对象深度复制到子对象来递归扩展对象。

Parameters

Parameter	Type	Description
parent	ObjectType<any>	The parent object to copy from / 要复制的父对象
child	ObjectType<any>	The child object to merge into / 要合并到的子对象

Returns

ObjectType<any>

The extended child object / 扩展后的子对象

Example

const parent = { a: { b: 1, c: 2 }, d: [1, 2, 3], e: 'hello' }
const child = { a: { c: 3, f: 4 } }
extendDeep(parent, child)
// => { a: { b: 1, c: 2, f: 4 }, d: [1, 2, 3], e: 'hello' }

// Arrays are replaced, not merged
extendDeep({ arr: [1, 2] }, {}) // => { arr: [] }

// Nested objects are deeply copied
extendDeep({ user: { name: 'John', settings: { theme: 'dark' } } }, {})
// => { user: { name: 'John', settings: { theme: 'dark' } } }

Since

1.0.0