This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.
To capture the video (filesize: 19MB), using the free "QuickTime Player" application:
# Credit http://stackoverflow.com/a/2514279 | |
for branch in `git branch -r | grep -v HEAD`;do echo -e `git show --format="%ci %cr" $branch | head -n 1` \\t$branch; done | sort -r |
// set-up a connection between the client and the server | |
var socket = io.connect(); | |
// let's assume that the client page, once rendered, knows what room it wants to join | |
var room = "abc123"; | |
socket.on('connect', function() { | |
// Connected, let's sign-up for to receive messages for this room | |
socket.emit('room', room); | |
}); |
2015-01-29 Unofficial Relay FAQ
Compilation of questions and answers about Relay from React.js Conf.
Disclaimer: I work on Relay at Facebook. Relay is a complex system on which we're iterating aggressively. I'll do my best here to provide accurate, useful answers, but the details are subject to change. I may also be wrong. Feedback and additional questions are welcome.
Relay is a new framework from Facebook that provides data-fetching functionality for React applications. It was announced at React.js Conf (January 2015).
This is a supplement to the official Phabricator Installation Guide, because their guide will leave you with all kinds of permission and config errors and ~15,000 setup issues on startup.
# apt-get install mercurial subversion python-pygments sendmail imagemagick
All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.
Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.
elem.offsetLeft
, elem.offsetTop
, elem.offsetWidth
, elem.offsetHeight
, elem.offsetParent
import React, { Component } from 'react' | |
import Subapp from './subapp/Root' | |
class BigApp extends Component { | |
render() { | |
return ( | |
<div> | |
<Subapp /> | |
<Subapp /> | |
<Subapp /> |
[based on a true story]
So. Your friend's about to teach you how to make a website. Great!
You make a file, and you save it as 'index.html'. Why it's called 'index' isn't really explained to you, but whatever.
You type the following.
hello world