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[Noob here] Can someone explain to me the advantage of mutable objects? (lemmy.world)

submitted 21 hours ago* (last edited 21 hours ago) by amon@lemmy.world to c/programming@programming.dev

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It makes the code icky and hard to debug, and you can simply return new immutable objects for every state change.

EDIT: why not just create a new object and reassign variable to point to the new object

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[–] thenextguy@lemmy.world 50 points 20 hours ago

Faster. Less memory. Maps to physical things well (e.g. a device with memory mapped registers). No garbage collection / object destruction needed. No need to initialize new objects all the time.