How to Create a Web Worker-Driven Multithreaded Frontend App

It leans on an under-development Web Worker-driven framework called neo.mjs that promises “a new era of making better Web-based user interfaces.” - http://amp.gs/25Vh

#javascript

Hello!

We are excited to introduce Quarkly, a design tool for accelerated and optimized creation of React websites and apps.

Quarkly has the power of graphic and code editors and the speed of website builders.

To make the introduction to Quarkly fun, we are launching a prize-winning contest.

Create a React Component using Atomize →
Get Kudos From the Quarkly Team and win $100!

To enter the contest, visit https://u.to/-yb6GA

A Visual Guide to React Mental Models (Part 2)

We featured Part 1 back in Issue 186 and here’s part 2 of this comprehensive three part article which encourages the use of helpful mental images for useState, useEffect and Lifecycles. - http://amp.gs/2Qly

#react

Writing a Vue component using TDD: a gentle introduction

In this tutorial, you'll learn the basic concepts of Test Driven Development (TDD) building a simple Vue.js component with TypeScript, using Jest for testing and setting up coverage and Continuous Integration with TravisCI. - http://amp.gs/2cZY

#vue

Advice for Complex CSS Illustrations

Jhey Tompkins shares a set of techniques that will help you create complex CSS illustrations. - http://amp.gs/26Z1

#css

Testing Angular routing components with the RouterTestingModule

This article teaches us about shallow and integrated routing component tests. The RouterTestingModule is useful for integrated routing component tests. To learn what the RouterTestingModule does, we discuss the Location service and its dependencies. - http://amp.gs/2b8X

#angular

Testing in Parallel with Mocha v8.0.0

Discover how running tests in parallel mode allows Mocha to take advantage of multi-core (or multiple) CPUs resulting in significant speedups for many large test suites. - http://amp.gs/wI81

#nodejs

A Deep Dive Into Relay, the Friendly and Opinionated GraphQL Client

The Relay framework enables declarative management of GraphQL data. It has the potential to be a worthy addition to your React toolkit so long as you are prepared to got with its flow. They call it ‘opinionated’ for a reason. - http://amp.gs/wjjN

#react

Separating Core Logic and Framework Integrations

Write a simple useForm composable to integrate a framework-agnostic form validation library with Vue.js 3. - http://amp.gs/wjFn

#vue

153 JavaScript Questions (With Their Answers Explained)

Want to test your JavaScript knowledge? Whether for fun or a job interview, this is an interesting set of questions, complete with explanations of the answers. We first linked to this a year ago when it only had about 40 questions, so it’s grown a lot! - http://amp.gs/w8Fe

#javascript

Getting started with programmatic animations using the Angular Animations API

The @angular/animations package is a powerful tool that you can utilize to your advantage in creating great experiences for your users. A simple animation like fade in or fade out may prove to be super effective in upgrading your applications. Adding simple animations like this does not take longer than 10 minutes of development time, but it helps you to keep your users on your website a lot longer! - http://amp.gs/wT21

#angular

Building a Hexagonal Grid Using CSS Grid

Jesse Breneman demonstrates how to build a interconnected hexagonal grid, where each hexagon fits together seamlessly. - http://amp.gs/wzKT

#css

Two Ways of Rate Limiting an Express App

A comparison of a naive approach versus something more structured with RxJS. - http://amp.gs/w1KJ

#nodejs

How to test custom prop validators in Vue.js

In the article, Rolf Haug (co-founder of Vue School) will show you how you can test props and custom prop validators in a simple and performant way, without spying on the console error. - http://amp.gs/wYH3

#vue

Consuming REST APIs in React with Fetch and Axios

While there are a number of ways of going about it, this tutorial focuses on Axios and Fetch as the primary means of consuming REST APIs. It’s instructive but also may convince you that it’s a superior approach to the alternatives. - http://amp.gs/wtAB

#react

Track Your (Android) Smartphone in Physical Space with JavaScript

In this tutorial, we will be utilizing the Generic Sensor API to turn your smartphone into a pointer with real-time tracking. - http://amp.gs/wmqm

#mobile #javascript

An Old School Doom Clone (in 13KB of JavaScript)

I have no idea how we missed this last year, but wow, what a neat piece of work. You can even grab it and play with the code yourself. - http://amp.gs/wZAb

#javascript

Seven Ways to Improve Node Performance at Scale

A broad overview of general ideas. - http://amp.gs/wpz5

#nodejs