To set up npm (Node Package Manager) on Windows, you can follow these steps: You have successfully set up npm on your Windows machine. You can now use npm to install and manage packages for your Node.js projects.
In Node.js, the console object provides several useful methods for interacting with the terminal. Here are some commonly used console commands in Node.js: These are some of the frequently used console commands in Node.js. You can use them in the terminal to print messages, debug your code, and analyze data during development.
In Node.js, you can import and use the Lodash library to work with arrays, objects, functions, and other data types. Here’s an example of how to import Lodash in Node.js: Install Lodash: npm install lodashCreate a JavaScript file, for example, example.js, and open it in a text editor. Import Lodash into your file: const _ … Read more
Node-fetch is a module that allows you to make HTTP requests from a Node.js environment. It provides a similar interface to the browser’s built-in fetch API but is specifically designed for server-side usage. Here’s an explanation of how node-fetch works: npm install node-fetch const fetch = require(‘node-fetch’); fetch(‘https://api.example.com/data’) .then(response => response.json()) .then(data => { console.log(data); … Read more
In a Node.js application, the app.use(express.json()) code is typically used as middleware with the Express framework. Let’s break down its functionality: const express = require(‘express’); const app = express(); app.use(express.json()); When a request is received by your Express application, the express.json() middleware is executed before reaching your routes or handlers. It examines the Content-Type header … Read more
In Node.js, the Buffer class is a built-in class that provides a way to work with binary data. It represents a fixed-size chunk of memory allocated outside the JavaScript heap. Buffers can be used to efficiently manipulate raw binary data, such as reading from or writing to files, interacting with network sockets, or handling binary … Read more
In Node.js, the package.json file is a metadata file that is typically located in the root directory of a Node.js project. It serves as a central configuration file for the project and provides important information about the project, its dependencies, and other details. The package.json file is essential for managing and building Node.js applications. It … Read more
In Node.js, “UTF” stands for Unicode Transformation Format. UTF is a character encoding scheme that represents Unicode characters using variable-length encoding. It allows representing a wide range of characters from different writing systems and languages. In the context of Node.js, “UTF” is commonly used in combination with string encoding and decoding operations. Node.js provides several … Read more
In Node.js, the fs module provides a set of functions for working with the file system. One of the functions available in this module is fs.stat(), which is used to retrieve information about a file or directory. The fs.stat() function takes a file path as its first parameter and a callback function as its second … Read more
To set up an HTTP server in Node.js, you can use the built-in http module. Here’s a code example that demonstrates how to create a basic HTTP server: const http = require(‘http’); // Define the port number for your server const port = 3000; // Create an HTTP server const server = http.createServer((req, res) => … Read more
