Elixir v1.4.5 Range View Source
Defines a range.
A range represents a discrete number of values where the first and last values are integers.
Ranges can be either increasing (first <= last) or decreasing (first > last). Ranges are also always inclusive.
A Range is represented internally as a struct. However,
the most common form of creating and matching on ranges
is via the ../2
macro, auto-imported from Kernel
:
iex> range = 1..3
1..3
iex> first..last = range
iex> first
1
iex> last
3
A Range implements the Enumerable protocol, which means all of the functions in the Enum module is available:
iex> range = 1..10
1..10
iex> Enum.reduce(range, 0, fn i, acc -> i * i + acc end)
385
iex> Enum.count(range)
10
iex> Enum.member?(range, 11)
false
iex> Enum.member?(range, 8)
true
Link to this section Summary
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Creates a new range.