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= Indexable
Indexable it a module, like Enumerable, but provides methods specific
to an indexable collection. The Indexable module can be used independently,
but Facets can also automatically use it to extend Array.
require 'facets/array/indexable'
== Indexable#head
a = [1,2,3,4,5]
a.head.assert = [1]
== Indexable#tail
a = [1,2,3,4,5]
a.tail.assert = [2,3,4,5]
== Indexable#foot
a = [1,2,3,4,5]
a.foot.assert = [5]
== Indexable#body
a = [1,2,3,4,5]
a.body.assert = [1,2,3,4]
== Indexable#mid
a = [1,2,3,4,5]
b = [1,2,3,4,5,6]
a.mid.assert = 3
b.mid.assert = 4
a.mid(1).assert = 4
b.mid(1).assert = 5
b.mid(2).assert = 6
b.mid(-1).assert = 3
== Indexable#middle
a = [1,2,3,4,5]
b = [1,2,3,4,5,6]
a.middle.assert = [3]
b.middle.assert = [3,4]
== Indexable#thru
[0,1,2,3,4,5].thru(2,4).assert = [2,3,4]
[0,1,2,3,4,5].thru(0,1).assert = [0,1]
== Indexable#first=
a = [1,2]
a.first = 0
a.assert = [0,2]
== Indexable#last=
a = [1,2]
a.last = 3
a.assert = [1,3]
== Indexable#ends
[1,2,3,4,5].ends.assert = 4
== Indexable#pos
a = [1,2,3,4,5]
a.pos(1).assert = 0
a.pos(-1).assert = 4
== Indexable#range
a = [1,2,3,4,5]
b = [1,2,3,4,5,6]
a.range.assert = (0..4)
b.range.assert = (0..5)
a.range(2,4).assert = (1..3)
b.range(2,3).assert = (1..2)
b.range(4,2).assert = (3..1)
== Indexable#first!
a = [1,2,3]
a.first!.assert = 1
a.assert = [2,3]
== Indexable#last!
a = [1,2,3]
a.last!.assert = 3
a.assert = [1,2]
Version data entries
7 entries across 7 versions & 1 rubygems