Re:Immutable.js – Immutable Data Collections
by Too on Saturday November 01, 2014 @08:52AM
(#8542870)
Last time i checked Object.freeze actually made things slower, alot slower. Sounds counter intuitive and it might eventually change but that's the current state in most popular browsers.
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Re:Immutable.js – Immutable Data Collections
by leebyron on Saturday November 01, 2014 @09:45PM
(#8545295)
This is pretty unfortunate.
At Facebook we use Object.freeze in a number of places to express POJSO immutability. A technique we've used to deal with the performance hit is to make most of these Object.freeze calls a no-op in a production environment.
Most FB employees (incl non-devs) load the site in development mode, so we still get the stricter error messages.