Posts

Discover how to efficiently determine the state of a checkbox, specifically whether it is checked or not, using JavaScript. To check if a checkbox is checked, you can inspect the checked property of the element. For example, if you have the following checkbox in your HTML: <input type="checkbox" class="checkbox" /> You can check if it is checked using the following JavaScript code: document.querySelector('.checkbox').checked Alternatively, you can use the :checked pseudo-class selector in conjunction with the ....

In this blog post, I will guide you through the process of redirecting to a new URL using JavaScript. Specifically, I will address a use case where you want to track the number of people who subscribe to your newsletter as a “goal” in your analytics. Previously, you may have used Google Analytics, which allows you to set up “funnel goals.” These goals involve visiting specific pages in a specific order....

In this tutorial, I will guide you on how to interact with a MongoDB database from Node.js. Note: If you are unfamiliar with MongoDB, please check our guide on its basics and how to install and use it. Prerequisites Make sure you have the mongodb npm package installed. If you already have a Node.js project, use the following command: npm install mongodb If you are starting from scratch, create a new folder in your terminal and run npm init -y to start a new Node....

Netcat is a powerful Unix command that allows you to perform various networking tasks. It is often used for debugging purposes and to gain a deeper understanding of how things work. Netcat, also known as nc, is readily available on Unix systems. To connect to a network server using Netcat, use the following syntax: nc DOMAIN PORT For example, to connect to the localhost on port 8000, you can use:...

Netlify Edge Functions are a powerful feature offered by Netlify, the popular hosting platform. While Netlify is known for static hosting, Edge Functions enable you to perform dynamic actions on your website. These functions allow you to implement features like geolocation, localization, A/B testing, redirects, and much more. Similar to Netlify Serverless Functions, Edge Functions run on the Netlify Edge, which means they are closer to the user and run on multiple CDN locations....

In many programming languages, including Go, JavaScript, and Python, the concept of null is widely used. Similarly, C has its own representation called NULL. However, it is important to note that the usage of NULL in C is different compared to other languages. In C, NULL is specifically used to represent a null pointer. When working with pointers in C, there are situations where we might not know what the pointer points to during initialization....

Learn how to include and use a package that you have installed using npm into your Node.js code. When you install a package using npm, it gets saved into your node_modules folder. But how do you actually use it in your code? Let’s say you have installed the popular JavaScript utility library lodash using the following command: npm install lodash This command will install the lodash package in your local node_modules folder....

In this tutorial, we will explore how to use pm2, a powerful process management tool for Linux, to run and manage a Node.js app on a DigitalOcean VPS. Additionally, we will set up pm2 to automatically update and restart the app whenever changes are pushed to its corresponding GitHub repository. To begin, make sure you have signed up for a DigitalOcean account and created a VPS using the NodeJS image, which comes pre-installed with pm2 and Node....

Prisma is a powerful ORM (Object-Relational Mapping) tool that provides an abstraction layer over databases. In this tutorial, we will explore how to get started with Prisma and use it to build a React application based on Next.js. To begin, create a new Next.js app in a folder using the following command: npx create-next-app Next, include Prisma in your dev dependencies by running: npm install -D prisma Now, you have access to the Prisma CLI utility....

In the world of Node.js, many APIs and libraries were built before the introduction of promises. As a result, they rely on a callback-based solution. However, working with nested callbacks can lead to a complex and messy code structure commonly known as “callback hell.” Thankfully, there is a solution: the use of promises and the await keyword. To remove callbacks and make use of promises, Node.js provides a useful utility called promisify from the util module....