Today I Learned

hashrocket A Hashrocket project

Checking Inclusion in Range in Ruby

Let's say you want to check if a number is between 1 and 3 in ruby.

You can use #include?:

(1..3).include?(2) 
# => true
(1..3).include?(3) 
# => true
(1..3).include?(5) 
# => false

You can also use the threequals operator ===:

(1..3) === 2
# => true
(1..3) === 3
# => true
(1..3) === 5
# => false

Both methods can be used on inclusive and exclusive ranges

See More #ruby TILs
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