Resources, tutorials, articles about JavaScript, Node.js, Deno, TypeScript, React, Jest, Enzyme and other JavaScript-based front and back end technologies.
When you use the utility Partial on a type, it will make all the type properties optional. Let's see how we can compose this utility with another one, Omit, to make optional only certain properties of this type. We'll finally create a utility type using TypeScript generics to apply this on any type we want.… Continue reading TypeScript: make selected properties optional with Partial & Omit
Bidirectional maps allow you to query by key and get its value or by value and get its key. Learn how to implement them in JS and make them type safe with TypeScript.
Learn how to create a Firebase login and sign up system in React using hooks.
Learn how to create a Rust library of functions, compile it into WebAssembly, and run it on the Deno JavaScript runtime.
I spoke at the JavaScript for WP conference about writing tests for the JavaScript in our WordPress plugins. Talk was live online on July 10, 2020. The code and the slides can be found here.
In this Deno tutorial, we'll see how to create a Deno CLI tool with TypeScript. We'll explore how to read a directory and write a file. Finally, we'll learn to publish our Deno module to GitHub and run it directly from that location and also to install it locally so it can work without connection.
Angular 10 introduces new support for TypeScript 3.9, new TS libraries and project structure, plus a stricter mode.
Deno will stop using TypeScript citing several issues like slow compiling times and inefficient code structuring. Deno will start using pure JavaScript for its internal code.
Learn about 5 new JavaScript features, operators, and expressions, that will improve your code, making it more readable and efficient.
GitHub issues are fantastic to track new features or bugs, who is assigned, categorize them, adding to projects and so on. At the same time, they're also quite slow to create and creating a bunch of them consumes too much time. I was tired of the slow process of creating a GitHub issue manually, so I built a free open source app to make the process much faster.
