The localStorage enables you to store data in the browser. The data stored is in the form of key/value pairs and it does not expire when you close the browser. It's also important to note that the localStorage only stores strings. That brings us to the theme of this…
Having duplicate data in your application is not desired. Imagine you have an array with people, and you have the same person multiple times. Thus, in this article, you will see how to check if an array of objects contains an object with a specific value. Let's take the following…
This article will teach you how to use Node.js, Fastify and HarperDB to build a course management system. This application will help you track the courses you are doing and the courses you plan to do. You will use the following technologies: * Node.js * HarperDB * Fastify Introduction When it…
ECMAScript 2021 will introduce a new String method, called replaceAll. As you can infer from the name, this method allows you to replace all the occurrences of a String in one go. Let's see the new method in action. With the code snippet below, you replace the word "boring" with…
ES2020 or ECMAScript 2020 brings exciting features to JavaScript. In this article, I want to talk about my favourite features from ES2020. That means the article does not cover all the additions. Thus, let us see my favourite new additions: * Dynamic Import * Nullish Coalescing Operator * Optional Chaining Operator * Private Class…
There are countless resources to learn JavaScript, and that is both a bad and a good thing. The good thing is that we have many options to choose from. However, the bad thing is that we do not know which resource is the best. Thus, the purpose of this article…