The Node fs Module: Exploring File System Functionality

The fs module in Node.js offers a range of valuable functions to interact with the file system efficiently. To begin using the fs module, you don’t need to install anything. Since it’s a part of the Node core, you can simply require it using the following code snippet: const fs = require('fs') Once you have required the module, you gain access to a wide array of methods, including: fs.access(): Checks if a file exists and if Node has the necessary permissions to access it....

The Node http module: Building an SEO-Friendly HTTP Server

The http module in Node.js is a powerful tool for building HTTP servers. With its useful functions and classes, developers can easily create and manage networking applications. Including the http module in your Node.js project is simple: const http = require('http'); The http module provides several properties, methods, and classes that are essential for building HTTP servers. Let’s explore them in detail. Properties http.METHODS This property lists all the supported HTTP methods:...

The Node os module

The os module of Node.js provides useful functions to interact with the underlying system. This module provides many functions that you can use to retrieve information from the underlying operating system and the computer the program runs on, and interact with it. const os = require('os') There are a few useful properties that tell us some key things related to handling files: os.EOL gives the line delimiter sequence. It’s \n on Linux and macOS, and \r\n on Windows....

The Node path module: Simplify File Path Operations for Easy File System Interaction

The path module in Node.js is a powerful tool that comes pre-installed with Node.js. It offers a wide range of functionality to easily access and interact with file paths in the file system. To begin using the path module, simply require it in your code: const path = require('path'); The path module provides two important properties: path.sep, which represents the path segment separator (\ on Windows and / on Linux/macOS), and path....

The node_modules folder size: A Privilege, Not a Problem

My thoughts on the node_modules folder size debate In the world of JavaScript application development, the size of the node_modules folder has always been a topic of discussion. How can a simple application be 100, 200MB in size without even adding a single line of code? Take, for example, running npx create-react-app todolist, which downloads a whopping 218.7MB of “stuff”! (Yes, that’s the actual number). However, before we criticize the size of the node_modules folder, let’s think about the countless hours that programmers all over the world have put into creating and maintaining open-source software....

The Node.js Runtime v8 options list

Introduction Node.js can be invoked with a wide range of options to configure the behavior of the v8 engine. This list provides an overview of all the possible options that can be used when starting a Node.js program. Default and Enabled Options Some of the options mentioned in this list are disabled by default, while others are enabled. To enable a disabled option, you can run node and pass the flag, for example node --experimental-extras....

The npx Node Package Runner: A Powerful Tool for Running Node Code

npx, a command available in npm since version 5.2, is an incredible tool for running Node code efficiently and comes packed with useful features. In the following post, I will introduce npx and explore its capabilities. Easily Run Local Commands Previously, Node developers used to publish executable commands as global packages to make them readily available in the path. However, this approach had limitations, mainly regarding version control. With npx, you can simply run npx commandname to automatically locate the correct reference of the command within the node_modules folder of your project....

The Number isFinite() Method: Everything You Need to Know

In JavaScript, the isFinite() method of the Number object is used to determine whether a given value is a finite number. It returns true if the value is indeed finite, and false if it is not. It is important to note that this method will return false for values that are not of the number data type, such as booleans, strings, objects, and arrays. Let’s take a look at some examples to understand this method better:...

The Object assign() Method: A Closer Look

The assign() method is a useful feature introduced in ES2015 for the Object object in JavaScript. It allows you to copy all the enumerable own properties from one or more objects into another object. The primary purpose of assign() is to create a shallow copy of an object. It means that the values of the properties are cloned, but the object references are copied instead of creating new objects. This implies that if you modify a property in the original object, the corresponding property in the copied object will also be modified....

The Object create() Method: A Complete Guide

Learn all about the create() method of the Object object in JavaScript. Introduced in ES5, the create() method is used to create a new object with a specified prototype. Usage To use the create() method, follow this syntax: const newObject = Object.create(prototype); For example: const animal = {}; const dog = Object.create(animal); The newly created object will inherit all the properties of the prototype object. You can also add new properties to the object that the prototype lacked by specifying a second parameter:...