Object pools can help prevent pauses due to garbage collection.

Most useful in real-time applications (e.g, games) where objects are created and discarded at a high rate.

Usage

As a stand-alone pool:

{ObjectPool} = require 'pools'
pool = new ObjectPool(MyClass)
x = pool.alloc(...) # use the same arguments as in 'new MyClass(...)'
pool.free(x) # the corpse of x will be re-animated by alloc()

As a class decorator (my preferred method):

{Pooled} = require 'pools'
Pooled class MyClass
    constructor: (junk) ->
x = MyClass.alloc(...)
x.free()

If a class has a destructor method, it is called from inside free().

{Pooled} = require 'pools'
Pooled class Test
    constructor: -> @status = 'inuse'
    destructor:  -> @status = 'free'

Or, a more realistic use of a destructor would be to call free() on any children that need it.