Polyfills or Ponyfills?
A relevant ad will be displayed here soon. These ads help pay for my hosting. Please consider disabling your ad blocker on Pony Foo. These ads help pay for my hosting. These are short-form “thoughts”, in addition to the usual longer-form articles in the blog. The goal is to publish one of these every weekday. I’d love to know what you think. You may send your questions to thoughts@ponyfoo.com. I’l
README Driven Development
A relevant ad will be displayed here soon. These ads help pay for my hosting. Please consider disabling your ad blocker on Pony Foo. These ads help pay for my hosting. These are short-form “thoughts”, in addition to the usual longer-form articles in the blog. The goal is to publish one of these every weekday. I’d love to know what you think. You may send your questions to thoughts@ponyfoo.com. I’l
Null Propagation Operator in JavaScript
A relevant ad will be displayed here soon. These ads help pay for my hosting. Please consider disabling your ad blocker on Pony Foo. These ads help pay for my hosting. There’s a proposal in stage 1 for the Null Propagation operator. In this article we’ll take a look at the proposal, which offers an alternative to null checks ad nauseum. Very often, we want to grab a value deeply, such as in the fo
ES6 Strings (and Unicode, ❤) in Depth
A relevant ad will be displayed here soon. These ads help pay for my hosting. Please consider disabling your ad blocker on Pony Foo. These ads help pay for my hosting. Yo. Here’s another edition of ES6 – “I can’t believe they killed off Stringer Bell” – in Depth series. If you’ve never been around here before, start with A Brief History of ES6 Tooling. Then, make your way through destructuring, te
Pattern Matching in ECMAScript
A relevant ad will be displayed here soon. These ads help pay for my hosting. Please consider disabling your ad blocker on Pony Foo. These ads help pay for my hosting. There’s a stage 0 proposal for pattern matching in JavaScript. In this article we’ll take a look at what the proposal entails and also show how you might find it useful. The proposal document has a few code examples, as usual. Here
Mixing Generators Into Iterators
As it turns out, iterators can be written using generators. This can lead to some interesting use cases. Read on to understand the synergistic properties between these two JavaScript iteration concepts. Let’s do a quick recap of generators (read our primer on generators here). Generator functions return generator objects when invoked. A generator object has a next method, which returns the next el
Observables Proposal for ECMAScript!
There’s an ECMAScript proposal for Observables in the works. In this article we explore the proposal, the API, and look at a few use cases. Observables in JavaScript were largely popularized by libraries such as RxJS and Bacon.js. Jafar Husain, a Netflix tech lead and long-time functional programming advocate who’s also on TC39 has been developing a proposal to bring observables into the core lang
ECMAScript Proposal for JavaScript Decorators (and protocols)
Decorators are, as most things programming, definitely not a new concept. That being said, they may be coming to JavaScript. There’s a JavaScript decorators proposal in the works. It is currently sitting at stage 1 of the ECMASCript process, but may soon advance to stage 2. We take a look at how it works and why it’s useful. Decorators are a fairly commonplace in modern programming languages: you
ServiceWorker: A Basic Guide to BackgroundSync
A relevant ad will be displayed here soon. These ads help pay for my hosting. Please consider disabling your ad blocker on Pony Foo. These ads help pay for my hosting. Picture the scene. You’re using your mobile device to browse a website and book some important concert tickets. You’ve have been eagerly awaiting this concert for months. You get right through to the checkout screen, enter your card
ECMAScript String Padding
A relevant ad will be displayed here soon. These ads help pay for my hosting. Please consider disabling your ad blocker on Pony Foo. These ads help pay for my hosting. There’s an ECMAScript proposal to standarize String.prototype.padStart and String.prototype.padEnd. String padding is something that we’ve always had come across or implement ourselves one way or another. Care to take a look? Cat pa
ES2016 Features & ECMAScript as a Living Standard
As it turns out, ES2016 – also known colloquially as ES7 – will be comprised of a very small feature set. This article explains the new features in ES2016. ECMAScript editor @bterlson reported last week that features in stage 4 were going to make it into ES2016, and there were just two features in that state. You can check out the current state of all ECMAScript proposals on GitHub. @rauschma Any
Asynchronous I/O with Generators & Promises
A relevant ad will be displayed here soon. These ads help pay for my hosting. Please consider disabling your ad blocker on Pony Foo. These ads help pay for my hosting. The article covers designing a JavaScript API to deal with asynchronous data inputs and outputs using generators to succinctly describe a set of operations. Promises can also be used to chain other operations after the output has be
JavaScript Developer Survey Results
The end of year is drawing close and the JavaScript Developer Survey has now ended. The survey received an unimagined amount of replies and I’m excited to share the results with you! There were over 5000 responses, 5350 to be exact, and I can’t wait to share the details. Before that I want to thank everyone who chipped in. This is a great time to be a part of the JavaScript community, and I’m trul
ES6 Overview in 350 Bullet Points
A relevant ad will be displayed here soon. These ads help pay for my hosting. Please consider disabling your ad blocker on Pony Foo. These ads help pay for my hosting. My ES6 in Depth series consists of 24 articles covering most syntax changes and features coming in ES6. This article aims to summarize all of those, providing you with practical insight into most of ES6, so that you can quickly get
ES6 JavaScript Destructuring in Depth
A relevant ad will be displayed here soon. These ads help pay for my hosting. Please consider disabling your ad blocker on Pony Foo. These ads help pay for my hosting. I’ve briefly mentioned a few ES6 features (and how to get started with Babel) in the React article series I’ve been writing about, and now I want to focus on the language features themselves. I’ve read a ton about ES6 and ES7 and it
Why I Write Plain JavaScript Modules
A relevant ad will be displayed here soon. These ads help pay for my hosting. Please consider disabling your ad blocker on Pony Foo. These ads help pay for my hosting. These are short-form “thoughts”, in addition to the usual longer-form articles in the blog. The goal is to publish one of these every weekday. I’d love to know what you think. You may send your questions to thoughts@ponyfoo.com. I’l
Let’s talk about Web Performance
A relevant ad will be displayed here soon. These ads help pay for my hosting. Please consider disabling your ad blocker on Pony Foo. These ads help pay for my hosting. For the past few months I’ve been speaking at conferences about web performance. Unfortunately, none of those awesome conferences have published their talk videos just yet. I figured I’d publish a write up about the talk, the things
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TC39, ECMAScript, and the Future of JavaScript
ES6 Object Literal Features in Depth
All Aboard the ES6 JavaScript Train