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A comment on Immutable Data Collections for Javascript. Parent comment

Re:Immutable Data Collections for Javascript by nawitus on Wednesday July 30, 2014 @01:13PM (#8109535)
I'd guess this library clones on modification, but I was talking about cloning the object on every function call.
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Re:Immutable Data Collections for Javascript by room271 on Wednesday July 30, 2014 @04:06PM (#8110615)
Persistent data structures allow for the appearance of cloning (you have a new thing) but are much more efficient behind the scenes (you don't actually copy everything). So if you find yourself doing a lot of defensive cloning, then Mori or this library would probably be a lot faster for you.
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Re:Immutable Data Collections for Javascript by nawitus on Thursday July 31, 2014 @03:11PM (#8116295)
Absolutely! If anyone is reading this, I recommend Eric Lippert's 11 part series on immutability in C#. The concept apply everywhere, of course.

http://blogs.msdn.com/b/ericlippert/archive/2007/11/13/immut...

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