lodash.defaultsdeep

What is lodash.defaultsdeep?

The lodash.defaultsdeep package is a utility that allows for deep merging of default object properties. It is particularly useful for initializing configuration objects with default values while preserving any user-defined values. This package recursively assigns default properties, which is especially handy when dealing with nested objects.

What are lodash.defaultsdeep's main functionalities?

Deep merging of objects

This feature allows for the deep merging of nested objects, ensuring that all default properties are set while preserving any existing values in the target object. It's particularly useful for setting up configurations with nested properties.

{"const defaults = { user: { name: 'Anonymous', preferences: { theme: 'dark' } } }; const userConfig = { user: { preferences: { notifications: true } } }; _.defaultsDeep(userConfig, defaults); // Result: { user: { name: 'Anonymous', preferences: { theme: 'dark', notifications: true } } }"}

Other packages similar to lodash.defaultsdeep

deepmerge

The deepmerge package offers similar functionality to lodash.defaultsdeep, allowing for the deep merging of objects. However, deepmerge provides more customization options, such as the ability to specify how arrays and other special objects are merged, which might make it more suitable for complex merging scenarios.

extend

The extend package is another utility for merging objects, but it does not support deep merging by default. It's simpler and might be preferred for shallow merge operations, but for deep merging scenarios similar to what lodash.defaultsdeep offers, one would have to enable its deep merge option explicitly.

README

lodash.defaultsdeep v4.1.0

The lodash method _.defaultsDeep exported as a Node.js module.

Installation

Using npm:

$ {sudo -H} npm i -g npm
$ npm i --save lodash.defaultsdeep

In Node.js:

var defaultsDeep = require('lodash.defaultsdeep');

See the documentation or package source for more details.