LANGUAGE » RUBY

Set

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Reference:docs.ruby-lang.org

Basic

Initializing a Set:

rb

myset = Set.new
myset.add(value)

Create a Set from an Array:

rb

myset = myarray.to_set

Operators

Operator	Description
`+`	Union
`-`	Difference
`&`	Intersection
`^`	Symmetric difference

Methods

Method	Description
`to_a`	`Set` → `Array`
`size`	Number of elements.
`empty?`	`true` if there are no elements.