The Canvas API is a powerful tool offered by browsers that allows you to draw on the screen using the HTML <canvas> tag. In this tutorial, we’ll explore the different features and capabilities of the Canvas API. Create a canvas To create a canvas, simply add the <canvas></canvas> tag to a blank HTML file. By default, the canvas is invisible, so you won’t see anything. You can add a border to the canvas by adding the following CSS code:...
Web development is a constantly evolving field, and it’s crucial for beginner developers to know where to start in order to acquire the skills that are in demand in the job market. In this blog, we will provide a roadmap to guide you on your journey to becoming a web developer in 2022. The Three Paths in Web Development There are three main paths in web development that you can choose from:...
In the realm of JavaScript, I recently stumbled upon something intriguing and potentially beneficial: the comma operator. While I commonly use commas to separate properties within an object or items within an array, I had never paid much attention to its application within expressions. Let’s consider the following example: ('a', 'b') In this scenario, both expressions (in this case, strings) are evaluated, and the result is the last element, which is the expression following the final comma....
Generators in JavaScript are a valuable tool for creating functions that can be paused and resumed, allowing other code to execute in the meantime. By incorporating the keyword “yield,” generators can halt their execution and give control to other code until they are ready to resume. This powerful feature opens up new programming possibilities and can significantly improve code efficiency. To define a generator function, we use the * symbol before the function keyword....
Introduced in ES2015 (aka ES6), Template Literals offer a new and improved way to declare strings in JavaScript. In addition to providing a simple and concise syntax, Template Literals also come with a range of powerful features that make them a popular choice among developers. This guide will cover the following topics: Introduction to Template Literals Multiline strings Interpolation Template tags Introduction to Template Literals Template Literals are a feature introduced in ES2015/ES6 that allow you to work with strings in a more flexible and efficient way compared to traditional single or double quoted strings....
Code samples often showcase the latest JavaScript features that may sometimes be mistaken for framework-specific features. This is particularly common with frameworks like React, which emphasize a modern approach to JavaScript. This blog post aims to provide clarity regarding these features, especially for those transitioning from pre-ES6 JavaScript or starting from scratch. The goal is to help you identify which constructs are inherent to JavaScript and which ones are specific to a framework....
Introduction to Babel Babel is an indispensable tool for every JavaScript developer. It solves the problem of using new JavaScript features that are not available in older browser versions. With Babel, you can transpile your modern JavaScript code into a syntax that is supported by all browsers. Installing Babel To install Babel, you need to use npm and install it locally in your project. Run the following command in your terminal:...
JavaScript Arrow Functions, introduced in ES6/ECMAScript 2015, have had a significant impact on modern JavaScript code. They offer a shorter and more concise syntax compared to regular functions, making them widely used in modern codebases. In this tutorial, we will explore the features and benefits of arrow functions. Syntax and Usage Arrow functions provide a simpler syntax for writing functions. Instead of using the function keyword, you can define an arrow function using the => notation....
In this blog post, we will discuss how to add event listeners to all the elements returned by a document.querySelectorAll() call. This method allows us to iterate over the results and attach an event listener to each element. By using the for..of loop, we can easily iterate over the NodeList returned by querySelectorAll(). Here’s an example: const buttons = document.querySelectorAll("#select .button"); for (const button of buttons) { button.addEventListener('click', function(event) { // Event listener logic goes here }); } It is worth noting that document....
Introduction to Functional Programming Functional Programming (FP) is a programming paradigm that includes specific techniques. There are both purely functional programming languages like Haskell, Clojure, and Scala, as well as programming languages that support functional programming techniques, such as JavaScript, Python, and Ruby. While the concept of functional programming dates back to the 1930s with the birth of lambda calculus, it has gained significant momentum recently. This is the perfect time to learn about functional programming, especially through JavaScript examples....