What are the core modules of Node JS?
Node. js Core Modules
Core Module | Description |
---|---|
url | url module includes methods for URL resolution and parsing. |
querystring | querystring module includes methods to deal with query string. |
path | path module includes methods to deal with file paths. |
fs | fs module includes classes, methods, and events to work with file I/O. |
Which of the following core modules is used to create a Web server in Node JS?
http’ module
The Node. js framework can be used to develop web servers using the ‘http’ module. The application can be made to listen on a particular port and send a response to the client whenever a request is made to the application. The ‘request’ module can be used to get information from web sites.
Which core module in Node can you use for testing?
The assert module
The assert module. The basis for most Node unit testing is the built-in assert module, which tests a condition and, if the condition isn’t met, throws an error. Node’s assert module is used by many third-party testing frameworks. Even without a testing framework, you can do useful testing with it.
Is HTTP a core module of Node JS?
The http module is a core module of Node designed to support many features of the HTTP protocol. Second, create an HTTP server using the createServer() method of the http object.
Which core module in node provides an API?
Async Hooks
Async Hooks are a core module in Node. js that provides an API to track the lifetime of asynchronous resources in a Node application.
Which of the following core module is used to create a web?
Answer: A is the correct option. 31) Which of the following module is required to create a web server? Answer: D is the correct option. The url module is required to create a web server.
What are core features of Express framework?
Let’s see some of the core features of Express framework:
- It can be used to design single-page, multi-page and hybrid web applications.
- It allows to setup middlewares to respond to HTTP Requests.
- It defines a routing table which is used to perform different actions based on HTTP method and URL.
Which core module in node can you use to take advantage of multi core systems?
To take advantage of multi-core systems, the user will sometimes want to launch a cluster of Node. js processes to handle the load. The cluster module allows easy creation of child processes that all share server ports.
What is a module in js?
A module in JavaScript is just a file containing related code. In JavaScript, we use the import and export keywords to share and receive functionalities respectively across different modules. The export keyword is used to make a variable, function, class or object accessible to other modules.
What are the key features of node js?
Features of Node. js
- Asynchronous and Event Driven − All APIs of Node. js library are asynchronous, that is, non-blocking.
- Very Fast − Being built on Google Chrome’s V8 JavaScript Engine, Node. js library is very fast in code execution.
- Single Threaded but Highly Scalable − Node.
- No Buffering − Node.
- License − Node.
What is core module in Node JS?
Node.js is a light weight framework. The core modules include bare minimum functionalities of Node.js. These core modules are compiled into its binary distribution and load automatically when Node.js process starts. However, you need to import the core module first in order to use it in your application.
What are the different types of NodeJS modules?
Node.js includes three types of modules: 1 Core Modules 2 Local Modules 3 Third Party Modules
What’s new in Node JS?
What’s New? In Node.js, Modules are the blocks of encapsulated code that communicates with an external application on the basis of their related functionality. Modules can be a single file or a collection of multiples files/folders.
What are CommonJS modules?
Node.js implements CommonJS modules standard. CommonJS is a group of volunteers who define JavaScript standards for web server, desktop, and console application. Node.js includes three types of modules: