class RingArea::Area
- RingArea::Area
- Reference
- Object
Included Modules
- Comparable(RingArea::Area)
Defined in:
ring_area/area.crConstructors
Instance Method Summary
-
#<=>(other : RingArea::Area)
The comparison operator.
- #area : Float32 | Float64 | Int32
- #area=(area : Float32 | Float64 | Int32)
- #to_acres : Number
- #to_centimeters : Number
- #to_centimetres : Number
- #to_feet : Number
- #to_hectares : Number
- #to_inches : Number
- #to_kilometers : Number
- #to_kilometres : Number
- #to_meters : Number
- #to_metres : Number
- #to_miles : Number
- #to_millimeters : Number
- #to_millimetres : Number
- #to_nauticalmiles : Number
- #to_yards : Number
Constructor Detail
Instance Method Detail
def <=>(other : RingArea::Area)
#
Description copied from module Comparable(RingArea::Area)
The comparison operator. Returns 0 if the two objects are equal,
a negative number if this object is considered less than other,
a positive number if this object is considered greater than other,
or nil if the two objects are not comparable.
Subclasses define this method to provide class-specific ordering.
The comparison operator is usually used to sort values:
# Sort in a descending way:
[3, 1, 2].sort { |x, y| y <=> x } # => [3, 2, 1]
# Sort in an ascending way:
[3, 1, 2].sort { |x, y| x <=> y } # => [1, 2, 3]