JavaScript to Know for React

Good article by Kent C. Dodds, covering the JavaScript paradigms which are used quite a lot when writing React apps. Learning JavaScript features is really advisable for you to be effective building applications with React. So here are a few JavaScript features I’d recommend you spend some time learning so you can be as effective …

ESNext: Proposals to look forward to (Fronteers Jam Session)

At last years’ edition of Fronteers Conference I gave a lightning talk on ESNext, covering the TC39 Process and highlighting three of my favorite proposals (some of which have hit Stage-3 by now!). Earlier this week they released the video of my (short) talk The lightning talk itself was a short version of a full …

Secrets in Serverless

Good post on how and where to store your secrets when working in a Serverless / Cloud Environment — something I was wondering about myself a little while ago Serverless applications and cloud functions often need to communicate with an upstream API or service. Perhaps they require a username and password to connect to a …

How Web Content Can Affect Power Usage

The Webkit blog, on how to optimize your pages so that they don’t drain the battery of your visitors their devices: Users spend a large proportion of their online time on mobile devices, and a significant fraction of the rest is users on untethered laptop computers. For both, battery life is critical. In this post, …

RE: Overengineered packages?

ℹ️ This is a reply to Johan Ronsse’s post “Overengineered Packages?”. Be sure to read it first. After having posted about the class-names package, Johan turned to Twitter to state that the package overengineered. In a follow-up blogpost he argues that: At the moment I feel like it’s only invented because of a deeper problem: …

SessionBox – Log in with multiple accounts to any website

For some online services such as Twitter and Facebook I have more than one account. Be it accounts for my company, an alter ego, my children, etc. To easily switch between these accounts – without logging out, back in, and doing the 2FA dance – I rely on a Chrome Extension named SessionBox which allows …

class-names – Conditionally join CSS class names together

One of the packages I’ve been using a lot is classnames, a simple JavaScript utility for conditionally joining classNames together. Recently I stumbled upon @sindresorhus/class-names, a likewise package whose usage is very similar. import classNames from '@sindresorhus/class-names'; // Think of these like props of your React component … const props = { type: 'success', small: …

react-use – Browser APIs as React Hooks

react-use is a collection of React Hooks that wrap many browser APIs and functions. Want to track the geolocation of a device? Use useGeolocation. Want to read the battery status? Use useBattery. Etc. import {useBattery} from 'react-use'; const Demo = () => { const batteryState = useBattery(); if (!batteryState.isSupported) { return ( <div> <strong>Battery sensor</strong>: …