module Iterable(T)

Overview

The Iterable mixin provides convenience methods to collection classes that provide an #each method that returns an Iterator over the collection.

Direct including types

Defined in:

iterable.cr

Instance Method Summary

Instance Method Detail

def chunk(reuse = false, &block : T -> U) forall U #

Returns an Iterator that enumerates over the items, chunking them together based on the return value of the block.

(0..7).chunk(&./(3)).to_a # => [{0, [0, 1, 2]}, {1, [3, 4, 5]}, {2, [6, 7]}]

See also: Iterator#chunks.


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def cycle(n) #

Same as each.cycle(n).


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def cycle #

Same as each.cycle.


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abstract def each #

Must return an Iterator over the elements in this collection.


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def each_cons(count : Int, reuse = false) #

Same as each.cons(count).


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def each_slice(count : Int, reuse = false) #

Same as each.slice(count, reuse).


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def each_with_index(offset = 0) #

Same as each.with_index(offset).


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def each_with_object(obj) #

Same as each.with_object(obj).


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