Ruby - Array membership check?
Introduction
The include? method returns true if the supplied parameter is in the array, and false otherwise:
Demo
x = [1, 2, 3]
p x.include?("x")
p x.include?(3)
Result
Related Topic
- Array
- Accessing the First and Last elements of the array
- Array Empty checking
- Reversing the Order of the array's elements
- Array Type
- Arrays Creating
- Create an array of single-quoted strings without typing all the quotation marks
- Array element with yield value
- Using Array.new method
- Multidimensional Arrays
- Using iterator for nested array