Async iterators and generators

Streaming fetches are supported in Chrome, Edge, and Safari, and they look a little like this: async function getResponseSizeurl const response = await fetchurl; const reader = response.body.getReader; let total = 0; while true const done, value = await reader.read; if done return total; total +=...

Privacy Groups File FTC Complaint over WhatsApp Data Sharing with Facebook

Alleging a trail of broken promises, two privacy-focused advocacy groups yesterday filed a complaint with the Federal Trade Commission against a recent WhatsApp privacy policy change that states it will begin sharing user data with parent company Facebook. The Electronic Privacy Information Cente...

Using ServiceWorker in Chrome today

The implementation for ServiceWorker has been landing in Chrome Canary over the past few months, and there's now enough of it to do some cool shit! Unnecessary representation of "cool shit" What is ServiceWorker? ServiceWorker is a background worker, it gives us a JavaScript context to add featur...

ES7 async functions

They're brilliant. They're brilliant and I want laws changed so I can marry them. Update: This feature is now shipping in browsers. I've written a more up-to-date and in-depth guide. Async with promises In the HTML5Rocks article on promises, the final example show how you'd load some JSON data fo...

Promises: resolve is not the opposite of reject

When I first started working with promises I had the overly simplistic view that passing a value into reject would mark the promise as "failed", and passing a value into resolve would mark it as "successful". However, the latter isn't always true. new Promiseresolve, reject = resolvesomething;...