struct

Array::View(T)

Inherits Comparable < Indexable < Enumerable < Iterable < Struct < Value < Object

An ArrayView is a read-only version of an Array. This is useful to give access to a non-modifiable array in a type-safe manner.

The functionality of ArrayView is limited by design, as it just delegates the methods defined by the Indexable mixin to the enclosed array.

arr = ArrayView.new([1, 2, 3, 4])
arr.size            # => 4
arr[2]              # => 3
arr.select &.even?  # => [2, 4]
arr.select! &.even? # does not compile
arr.sort            # does not compile

Constructors

new(arr : Array(T))

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Instance methods

&(*args, **options)

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&(*args, **options, &)

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*(*args, **options)

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*(*args, **options, &)

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+(*args, **options)

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+(*args, **options, &)

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-(*args, **options)

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-(*args, **options, &)

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<=>(rhs : self) : Int32

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<=>(*args, **options)

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<=>(*args, **options, &)

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[](*args, **options)

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[](*args, **options, &)

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[]?(*args, **options)

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[]?(*args, **options, &)

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|(*args, **options)

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|(*args, **options, &)

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compact(*args, **options)

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compact(*args, **options, &)

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each_repeated_permutation(*args, **options)

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each_repeated_permutation(*args, **options, &)

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first(*args, **options)

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first(*args, **options, &)

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flatten(*args, **options)

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flatten(*args, **options, &)

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index(*args, **options)

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index(*args, **options, &)

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inspect(io : IO) : Nil

Appends this struct's name and instance variables names and values to the given IO.

struct Point
  def initialize(@x : Int32, @y : Int32)
  end
end

p1 = Point.new 1, 2
p1.to_s    # "Point(@x=1, @y=2)"
p1.inspect # "Point(@x=1, @y=2)"

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last(*args, **options)

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last(*args, **options, &)

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map(*args, **options)

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map(*args, **options, &)

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map_with_index(*args, **options)

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map_with_index(*args, **options, &)