Recent improvements

[bearophile]

Bienlein:

> There is the nice old Smalltalk-80 inject:into: method in the 
> Collection class:
>
> | list sum |
> list := OrderedCollection new add: 1; add: 2; add: 3; yourself.
> sum := list inject: 0 into: [ :a :b | a + b ].
> Transcript cr; show: sum.  "prints 6"
>
> A little more general ;-). The Scala guys have also cloned it 
> where it is called foldLeft.

In D there's std.algorithm.reduce.
I think Scala guys have copied something older than Smalltalk.

Bye,
bearophile