deepmerge 4.3.1

Deepmerge is a powerful JavaScript library used for deep, recursive merging of JavaScript objects. It merges the enumerable properties of two or more objects deeply, returning a new object which incorporates the elements from both parent objects. If an element at the same key is present for both parent objects, the value from the second object will appear in the result. By default, arrays are merged by concatenation. Note that the merging creates a new object, ensuring that neither of the original objects is modified.

To start using Deepmerge, you'll first need to install it using npm, a popular package manager for the JavaScript programming language. You can install Deepmerge by running the following command in a terminal:

npm install deepmerge

After the installation, you can include Deepmerge in your JavaScript project using the require function, as shown:

const merge = require('deepmerge')

With Deepmerge included in your project, you can start merging objects. Below is an example of how to use Deepmerge to merge two JavaScript objects:

const x = {
    foo: { bar: 3 },
    array: [{ does: 'work', too: [ 1, 2, 3 ] }]
}

const y = {
    foo: { baz: 4 },
    quux: 5,
    array: [{ does: 'work', too: [ 4, 5, 6 ] }, { really: 'yes' }]
}

const output = merge(x, y);

The 'output' object will now be a deep merge of the 'x' and 'y' objects.

The Deepmerge library also provides additional options for merging, including custom merging of arrays or overriding the default merge behavior for specific properties.

The documentation for the Deepmerge library can be found directly on its GitHub page, at git://github.com/TehShrike/deepmerge.git. Here, you'll find a detailed description of the Deepmerge API, including usage examples and information about different configuration options. The examples shown illustrate how to perform a deep merge, how to merge multiple objects, and how to use various options to customize the behavior of the merge operation. The documentation is clear and concise, making it easy to understand how to use Deepmerge effectively in your JavaScript applications.