- Node.js Tutorial
- Node.js - Home
- Node.js - Introduction
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- Node.js - First Application
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- Node.js - Events
- Node.js - Event Loop
- Node.js - Event Emitter
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- Node.js - Global Objects
- Node.js - Console
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- Node.js - Scaling Application
- Node.js - Packaging
- Node.js - Express Framework
- Node.js - RESTFul API
- Node.js - Buffers
- Node.js - Streams
- Node.js - File System
- Node.js MySQL
- Node.js - MySQL Get Started
- Node.js - MySQL Create Database
- Node.js - MySQL Create Table
- Node.js - MySQL Insert Into
- Node.js - MySQL Select From
- Node.js - MySQL Where
- Node.js - MySQL Order By
- Node.js - MySQL Delete
- Node.js - MySQL Update
- Node.js - MySQL Join
- Node.js MongoDB
- Node.js - MongoDB Get Started
- Node.js - MongoDB Create Database
- Node.js - MongoDB Create Collection
- Node.js - MongoDB Insert
- Node.js - MongoDB Find
- Node.js - MongoDB Query
- Node.js - MongoDB Sort
- Node.js - MongoDB Delete
- Node.js - MongoDB Update
- Node.js - MongoDB Limit
- Node.js - MongoDB Join
- Node.js Modules
- Node.js - Modules
- Node.js - Built-in Modules
- Node.js - Utility Modules
- Node.js - Web Module
- Node.js Useful Resources
- Node.js - Quick Guide
- Node.js - Useful Resources
- Node.js - Dicussion
Node.js - Buffer.isBuffer() Method
The NodeJS Buffer.isBuffer() method returns the true if the object given is a buffer.
Syntax
Following is the syntax of the Node.JS Buffer.isBuffer() Method −
Buffer.isBuffer( object )
Parameters
object − (required) An object.
Return value
The method Buffer.isBuffer() returns a boolean value true/false.It returns true if the given object is a Buffer and false if not.
Example
The example will create a buffer using Buffer.from() method and test if it's a buffer using Buffer.isBuffer() method.
const buf = Buffer.from('Hello World'); console.log("Testing isBuffer() : "+ Buffer.isBuffer(buf));
Output
Testing isBuffer() : true
Example
In this example we will test the Buffer.isBuffer() method with a string value. Since the string value is not an object the output has to be false.
const buf = 'Hello World'; console.log("Testing isBuffer() : "+ Buffer.isBuffer(buf));
Output
Testing isBuffer() : false
Example
In this example will create a buffer using Buffer.alloc(). Later will test the buffer using Buffer.isBuffer() as shown below −
const buf = Buffer.alloc(20); console.log("Testing isBuffer() : "+ Buffer.isBuffer(buf));
Output
Testing isBuffer() : true
nodejs_buffer_module.htm
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