RxJS: applying asyncScheduler as an argument vs with observeOn operator

If you are not familiar with Schedulers in RxJS, there is a short overview in Alexander’s article about queueScheduler. In short — asyncScheduler allows you emit each value in a separate macrotask (in terms of browser event-loop queue tasks). - http://amp.gs/9Ydl

#rxjs

The “Bug-O” Notation

Big O helps us think about the running time or memory complexity of our algorithms, but here Dan Abramov urges us to think about Bug-O (or how much an API slows you down as your codebase grows). - http://amp.gs/9tR8

#javascript

Using Joi for Code Validation on Node and Express Codebases

Joi is a long-standing schema-based object validator for JavaScript. - http://amp.gs/9mR3

#nodejs

Infinity CSS Grid

You can add as many columns as you like, and you can merge the columns or insert columns inside columns. Everything is 0.1 Kb and it even works in IE10. - http://amp.gs/9m02

#css #grid #components

How to configure Webpack 4 with Angular 7: a complete guide

The Angular CLI makes it easy to create an application that already works, right out of the box. It is a great tool, but have you never thought: “How does it work? How can I build an application without the CLI?” - http://amp.gs/9Zkw

#angular

DRY Vue: How to Reuse and Prepopulate Forms

For UX purposes, it makes sense to keep your forms consistent across a website. This article explains how to reuse form elements in a Vue project, as well as pre-populate data in inputs.
- http://amp.gs/9pxT

#vue

Destyle.css: A Clean Slate for Writing CSS Without User Agent Styles

An opinionated reset stylesheet. - http://amp.gs/9l1o

#css

Introducing Ionic 4: Ionic for Everyone

This release makes Ionic a set of web components using custom elements, allowing them to be more easily integrated into mobile, desktop and PWAs. - http://amp.gs/9lr2

#mobile #ionic

What’s (Could Be) New in JavaScript for 2019

Just two weeks ago we were reflecting on what ES2018 features we should know but now we’re on to speculating on what’s coming in ES2019. - http://amp.gs/9BzJ

#javascript

Building a Desktop App with Vue: NW.js

NW.js is a framework for building desktop applications with HTML, CSS, and JavaScript, and is an alternative to Electron and Vuido. Here’s a tutorial for using Vue and NW.js to build a weather forecast desktop app. - http://amp.gs/9BDZ

#vue #nw #desktop

End-to-End Testing with Cypress and Auth0

Auth0 is a popular, though commercial, authentication platform. - http://amp.gs/9njX

#nodejs #cypress

Creating Powerful Components with Angular CDK

In this article, we’ll learn how to use the Angular CDK overlay feature to create powerful components. We’ll accomplish this by creating a popover service that exposes an API that allows us to open a popover relative to any origin element, render a custom component, template, or simple text inside it, and get notified when it’s closed. - http://amp.gs/9nEc

#angular

Release It: Automate The Tedious Tasks of Software Releases

A CLI release tool for Git repos and npm packages that can run tests, bump version, git tagging and pushing, creating a release at GitHub, generate a changelog, and so forth. - http://amp.gs/9GZx

#nodejs #tools

Building an AOT Friendly Dynamic Content Outlet in Angular - http://amp.gs/9GLz

#angular #aot

Convert a String to a Number in JavaScript

You might think this is a simple task and explainable in a single line of code. Au contraire. there are some subtleties to be aware of. - http://amp.gs/9xL2

#javascript

How To Level Up Your Angular Unit Testing Game (2/3)

In the previous post, we learned how to pass parameters into Angular CLI to run unit tests. In this post, we’ll dive into Karma configuration and make the test runner more snazzy by configuring it for our unique needs. It’s time to level up your testing game and get pumped up to unit test! — http://amp.gs/9fHA

#angular #unit #tests

Slide an Image to Reveal Text with CSS Animations

Creating an effect where an image slides away to reveal text underneath. — http://amp.gs/9Cdn

#css

How to make lazy loading actually work in Vue (CLI 3)

TL;DR: By default Vue CLI based projects prefetch all the things and you can disable it. — http://amp.gs/9kgx

#vue

Writing a GraphQL Client in Vanilla JS

A short tutorial on writing a GraphQL client with zero dependencies. - http://amp.gs/9eyF

#javascript #graphql

Google Play Store Now Open for Progressive Web Apps

Chrome 72 for Android shipped the Trusted Web Activity feature meaning we can now distribute PWAs in the Google Play Store. — http://amp.gs/971Z

#pwa #news

Yarn’s Future: Looking to v2 and Beyond

Yarn is a popular JavaScript dependency management tool and an interesting alternative to npm. This update reflects on what Yarn has achieved and what’s yet to come. — http://amp.gs/9764

#nodejs