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:
// Spec http://www.ecma-international.org/ecma-262/6.0/#sec-json.stringify | |
const replacer = (key, value) => | |
value instanceof Object && !(value instanceof Array) ? | |
Object.keys(value) | |
.sort() | |
.reduce((sorted, key) => { | |
sorted[key] = value[key]; | |
return sorted | |
}, {}) : | |
value; |