brakmic
Tweet In this article, we will build a Node.js addon that uses HPX to execute certain algorithms. As you might have already seen on my blog, I have written some articles about HPX, a parallelization runtime & framework written in C++. You might also be asking yourself, why on Earth should...
Piotr Nalepa
Mowa o lokalnych edycjach 4Developers - Największego Interdyscyplinarnego Festiwalu IT dla programistów w Polsce. W tym roku organizatorzy ponownie przenoszą konferencję na lokalny grunt. Spotkania odbędą się w Katowicach, Poznaniu, Wrocławiu oraz Łodzi. Jest to kolejna edycja satelit 4Developers....
Piotr Nalepa
In this blog post I'm sharing a technique to test properly location changes happening in React useEffect hook. I'm showing you how to approach it correctly and what to avoid when testing it with Testing Library. Ten wpis Testing location change in useEffect in React został opublikowany najpierw na...
Technorage
Being a polyglot developer, there would be some language you like over others and here are mine.
Piotr Nalepa
Have you ever struggled with testing drag and drop features of you web app? In this article I'm going to share with you my AHA moments when developing E2E tests using Cypress. These are not only about drag'n'drop but they touch other areas of Cypress as well. Ten wpis My AHA moments when testing...
Technorage
Learn why Svelte matters and if you should you care about it
Technorage
Building a concurrent web server in TypeScript on Deno to compare concurrency performance with Rust, Go, JS, Kotlin, and Java
Technorage
Building a concurrent web server in JavaScript on NodeJS to compare concurrency performance with Rust, Go, TS, Kotlin, and Java
Piotr Nalepa
Have you ever struggled with finding a correct color definition in your project based on a color taken from designs? I've explained how to do it automatically and introduced a library that will do it for you in an almost automated way. Ten wpis How to find a similar colour in your colour...
Piotr Nalepa
Have you ever wondered how to type functions in TypeScript and ReactJS properly? After reading this article you'll understand nuances of using TypeScript in ReactJS and you'll become a better developer. Ten wpis Typing functions with TypeScript. How to do it properly in ReactJS? został...
Piotr Nalepa
Are you tired of typing nested relative paths in your components code when importing other components or pieces of code? In this article you'll learn how to improve coding experience by setting up custom absolute paths in TypeScript and Webpack. Ten wpis How to configure custom absolute imports in...
Piotr Nalepa
When writing React apps or modern JavaScript in general, we often create files with a set of reusable functions or classes. People tend to use default exports in such cases and I'm going to explain, why it's not the best idea to use them. What is a default export? The origin of default exports...
knok
I made a webpage to produce virtual background with webcam. https://knok.github.io/virtbg/ Sorcecode: https://github.com/knok/knok.github.io/tree/master/virtbg Some online meeting software (Zoom, Microsoft Teams) supports virtual background, but I want to use other software like Jitsi...
Technorage
Discover what memory leaks are and how to avoid them in your NodeJS application.
Piotr Nalepa
We all know what React is today. For those who don't know it yet: it's a view rendering library that helps developers to build user interfaces rapidly. In this article, I'm going to cover a topic of conversion of React components to Web Components. This might be useful in terms of delivering...
Piotr Nalepa
In this text I'll explain you how to work with Promises and async functions in paralel. Ten wpis Dealing with Promise.all() and a bunch of async functions został opublikowany najpierw na Piotr Nalepa - Blog webmasterski | Tutoriale JavaScript, CSS i nie tylko.
Piotr Nalepa
In this article I wrote down a list of crucial features of React UI library and answered some questions about React, that might appear during job interviews. It's better to know all these things and be ready for the next career step. Ten wpis What to answer when questions about React appear at job...
Technorage
Deno is a modern JavaScript/TypeScript runtime & scripting environment. It is what NodeJS should have been according to Ryan Dahl who created both tools
Technorage
Let's test drive GraalVM with a program that uses many languages together. Why? Because it's fun!
Piotr Nalepa
After reading this article you'll learn how to expose your Angular components as Web Components/Custom Elements that can be reused in other projects or while during the migration of an old codebase to a newer one. Ten wpis How to convert Angular component into reusable Web Component? został...
Technorage
Let us take a look at how the V8 engine for JavaScript & WebAssembly manages memory for Browsers and NodeJS.
Technorage
Introduction to Golang concepts for JavaScript developers - Part 2
Technorage
Introduction to Golang concepts for JavaScript developers - Part 1
Technorage
After using JavaScript for more than 10 years, here is what I think of it
Piotr Nalepa
Technologia Web Components pozwala na budowanie elementów interfejsu lub nawet całych aplikacji, które można wykorzystać w wielu różnych, niepowiązanych ze sobą projektach. Dzięki temu zyskujemy elementy, które będą zawsze działały w ten sam sposób niezależnie od użytej platformy. W jednym z...
Piotr Nalepa
Świat technologii webowych idzie do przodu i coś co kilka lat temu było pewnym konceptem o którym było wiadomo tylko tyle, że może się przyjmie, a może nie, nagle zaczyna wyglądać naprawdę dojrzale. Jednym z takich konceptów webowych, co do których byłem sceptycznie nastawiony kilka lat temu są...
Technorage
Functional programming concepts in TypeScript for everyone.
Technorage
Learn how to write efficient and concise react components using TypeScript.
Jon
Automated testing is a key part of software development toolkit and practice. fbp-spec is a testing framework especially designed for Flow-based Programming(FBP)/dataflow programming, which can be used with any FBP runtime. For imperative or object-oriented code good frameworks are commonly...
Larry Davis
Flashback: The state of innerHTML performance in 2008 "The most obvious conclusion of these tests is that innerHTML is faster than "real" W3C DOM methods in all browsers." — Quirksmode, circa 2008 Newsflash: innerHTML is slow.The time-honored best-practice is no longer best-practice. While you...
Larry Davis
Whenever you need to look something up on the Mozilla Developer Network, you usually end up typing something like mdn defineproperty into the search bar and clicking the first link. We've taken that already simple process and made it simpler with mdn.io, the "I'm feeling lucky" URL shortener for...
David Vázquez
UPDATE 22 Nov 2014: The project was renamed to JSCL and now is hosted at http://github.com/davazp/jscl. You can also try the live demo. Raimon Grau and I have been working on a simple Lisp to Javascript compiler, in order to better understand how to bootstrap it. Now we got it. It compiles...