react-native-maps – React Native Mapview component for iOS + Android

On a React Native project I’m currently working on, I’m implementing native (vector) mapviews. Gladly there’s react-native-maps by AirBnB to handle it all. import React, { Component } from ‘react’; import MapView from ‘react-native-maps’; class MapViewExample extends Component { constructor(props) { super(props); this.state = { region: { latitude: 37.78825, longitude: -122.4324, latitudeDelta: 0.0922, longitudeDelta: 0.0421, …

Stealing your browser history with the W3C Ambient Light Sensor API

A few years ago window.getComputedStyle and the like where adjusted to return the default color of links, instead of the actual color on screen. Security and privacy were the driving factors behind that decision: by styling :visited links with a different color than their non-visited counterparts, a hacker could easily determine which sites a user …

Luna Display’s “Camera Button”

What do you do when Apple keeps on taking away buttons from their devices (and when swipe gestures from nearly all edges are already taken by something else)? Well, you invent a new button: So when we ran out of buttons to hide our software’s UI behind, it really forced us to use our imagination. …

Browsershot: Convert a webpage to an image or PDF using headless Chrome

The folks over at Spatie have just release Browsershot v3: Browsershot is a PHP package which can convert a webpage to an image or pdf. The conversion is done behind the scenes by Puppeteer which controls a headless version of Google Chrome. Conversion is easy-peasy, hence this example: use Spatie\Browsershot\Browsershot; // an image will be …

Sticky Sidebar

Sticky Sidebar ⬆⬇ is a pure JavaScript plugin for making smart and high performance sticky sidebar, works with sidebar if it’s taller or shorter than the viewport, integrated with resize sensor to re-calculate the dimensions automatically when the size of sidebar or its container is changed, supports jQuery/Zepto and compatible with Firefox, Chrome, Safari, and …

Vapor – Server Side Swift

Interesting to see that Swift can also be used as a serverside language. One can clearly see parallels with other languages and frameworks. For example Vapor comes with an HTTP Package, which – amongst other things – contains a Request class. // http://vapor.codes/example?query=hi#fragments-too let scheme = request.uri.scheme // http let host = request.uri.host // vapor.codes …

Gremlins.js – Monkey testing library for web apps and Node.js

gremlins.js is a monkey testing library written in JavaScript, for Node.js and the browser. Use it to check the robustness of web applications by unleashing a horde of undisciplined gremlins. I especially like the syntax to start a test: var horde = gremlins.createHorde(); horde.unleash(); And oh, make sure you don’t run any tests after midnight …