Rebuilding Facebook Chat
summary
A rewrite of Facebook Chat replaces a monolithic client with CommonJS modules and dynamic server-side dependencies, cuts user bug reports from thousands to hundreds, and ships in six months. The front end moves from brittle MVC/event spaghetti to a functional style: singletons for thread stores, incremental loading for conversations and participants, and JSON-serializable application state. Tests run in Node with jsdom/contextify and a command-line harness that encourages isolated unit tests.
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chapters (5)
- 0:00Start
- 11:02JS require "dynamic" // PHP - server code
- 19:46JSOOP Style - Redux
- 22:38JSOOP Style - Testability
- 26:11JS Functional Style Example
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