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Lodash _.isBuffer

Overview

The lodash _.isBuffer method is a utility function that is used to determine whether or not a given value is a Buffer. It returns a boolean value of true if the value is a Buffer and false if it is not.

A Buffer is a Node.js built-in class that is used to store binary data. It is commonly used to work with files, streams, network protocols, and other similar scenarios where data needs to be transferred in its raw binary format.

The _.isBuffer method checks if a given value is an instance of the Buffer class using the instanceof operator. It also checks if the value has a buffer property of type Uint8Array.

Here's an example of using the _.isBuffer method:

const _ = require('lodash');

const buffer = Buffer.from('Hello, world!');
const notABuffer = 'Hello, world!';

console.log(_.isBuffer(buffer)); // true
console.log(_.isBuffer(notABuffer)); // false

In the example above, _.isBuffer returns true for the buffer variable since it is an instance of the Buffer class. On the other hand, it returns false for the notABuffer variable since it is just a string and not a Buffer.

Overall, the _.isBuffer method is a convenient way to determine if a given value is a Buffer without having to use the instanceof operator or check for the existence of the buffer property.