Best of JavaScript — February 2023
- 1
- 2
builder.io·3y
Use Maps More and Objects Less
Objects in JavaScript can be replaced with maps for better performance, easier iteration, and key-value manipulation. Maps are optimized for frequently adding and removing keys, unlike objects. They also solve issues of objects being polluted with built-in keys and provide better iteration methods. Maps can be easily copied, converted to objects, and vice versa. They can also be used for associating metadata with objects. Sets, another similar data structure, provide a better-performing way to create unique lists of elements.
- 3
- 4
Community Picks·3y
Learn JavaScript while Playing Games — Gamify Your Learning
Gamification is a technique of adding typical design elements from games to enhance the learning process. Gamification uses a simple strategic attempt to motivate and engage users while learning something new. This is done by leveraging people’s natural desire for socializing, learning, mastery, competition, achievement, status, or self-expression.
- 5
- 6
freeCodeCamp·3y
Create an Animated Physics Game with JavaScript
Learn how to create an animated physics game with JavaScript in this course. Gain skills in game development, implement collision detection and physics simulation, draw environments and characters, and create artificial intelligence for player interaction.
- 7
- 8
- 9
All about Promises in JavaScript
Promises in JavaScript are objects that represent values that may not be immediately available. They are used to handle asynchronous operations and provide benefits such as better readability, improved error handling, avoiding callback hell, ability to return a value, and better compatibility. Promises can be created using the Promise constructor and can be chained using then() and catch() methods. They can also be canceled using techniques like timeout, aborting a network request, or using a flag. Bluebird is a popular Promise library that provides advanced features like Promise cancellation. Multiple Promises can be executed in parallel using methods like Promise.all(), Promise.any(), Promise.race(), and Promise.allSettled().
- 10
- 11
- 12
Medium·3y
Why PHP should be renamed to HypeScript
PHP is facing challenges as it is perceived as not cool anymore, leading to a decline in popularity among younger developers. The post suggests renaming PHP to HypeScript as a way to rebrand and attract new developers without changing the programming language.
- 13
- 14
Debugging JavaScript Like a Pro: Tools and Techniques for Finding and Fixing Bugs
Learn about various tools and techniques for debugging JavaScript, including the browser console, conditional breakpoints, debuggers, linters, profilers, testing frameworks, error tracking services, call stack inspection, live editing, and code review.
- 15
Pointer·3y
mermaid-js/mermaid: Generation of diagrams like flowcharts or sequence diagrams from text in a similar manner as markdown
Mermaid is a JavaScript-based diagramming and charting tool that uses Markdown-like text definitions to create and modify complex diagrams. It helps with documentation by making it easy to create detailed diagrams. Examples of diagrams that can be made using Mermaid include flowcharts, sequence diagrams, Gantt charts, class diagrams, state diagrams, pie charts, and more.
- 16
- 17
asayer·3y
Create Incredible Web Presentations with Reveal.js
Reveal.js is an open-source HTML presentation framework that allows users to create fully-featured and interactive presentations with CSS 3D transforms, nested slides, and more. It is responsive, supports interactive elements, has a simple user interface, and is open-source. Some popular alternatives to Reveal.js include Impress.js, Prezi, PhotoSwipe, Owl Carousel 2, FlexSlider, Keynote, and Haiku Deck. To create vertical slides in Reveal.js, simply nest sections within a section.
- 18
Dot Notation vs Bracket Notation for Object Properties – What's the Difference?
Learn about the difference between dot notation and bracket notation for object properties in JavaScript. Understand how to access, modify, and add properties using both approaches. Determine when to use dot notation or bracket notation based on whether the property key is static or dynamic.
- 19
- 20
- 21
LogRocket·3y
Building a multi-framework dashboard with Astro
Building a multi-framework dashboard with Astro can be a powerful and efficient way to create complex and versatile software. As software systems and requirements evolve, it may become necessary to migrate to a new framework or set of frameworks. Using Astro, developers can easily integrate multiple frameworks, allowing them to take advantage of the best features of each.
- 22
- 23
Syncfusion·3y
Virtual DOM vs. Shadow DOM
This post discusses the definitions of virtual DOM and shadow DOM, highlighting their significant differences. It explains that virtual DOM is used for solving performance issues, while shadow DOM is used for encapsulating and isolating elements. It also mentions that React.js and Vue.js are JavaScript libraries that implement virtual DOM.
- 24
Hacker Noon·3y
Developer's Gold Mine: 8 Youtube Channels You Should Subscribe to Right Away
Developer's Gold Mine: 8 Youtube Channels You Should Subscribe to Right Away. You learn about a new development language every day as it enters the market and gains notoriety for its novel features. The channel mostly offers extended films (up to hours long) that go into detail on each thread and topic of the languages.
- 25
Getting started with SolidJS
Solid.js is an open-source JavaScript library for building web applications that focuses on performance and simplicity. It provides a lightweight component model, a simple and flexible API, server-side rendering, and code-splitting support. This tutorial covers getting started with SolidJS, creating a new project, using SolidJS APIs, building an application that showcases characters from the Rick and Morty series, and implementing infinite scrolling. It also highlights the ease of learning and using SolidJS.
