What's the difference between equal?, eql?, ===, and ==?

What's the difference between equal?, eql?, ===, and ==?

ruby comparison operators equality

ruby

What does map(&:name) mean in Ruby?

ruby syntax operators parameter-passing

ruby

What is Ruby's double-colon `::`?

ruby syntax operators

ruby

What does ||= (or-equals) mean in Ruby?

ruby operators

ruby

Difference between "and" and && in Ruby?

ruby operators

ruby

What is the Ruby <=> (spaceship) operator?

ruby operators comparison-operators spaceship-operator

ruby

No increment operator (++) in Ruby? [duplicate]

ruby operators

ruby

What does &. (ampersand dot) mean in Ruby?

ruby syntax operators parameter-passing ruby-2.3

ruby

Difference between "or" and || in Ruby? [duplicate]

ruby operators

ruby

What does the (unary) * operator do in this Ruby code?

ruby operators splat

ruby

ruby operator "=~" [duplicate]

ruby operators

ruby

Why doesn't Ruby support i++ or i-- (increment/decrement operators)?

ruby operators language-design

ruby

Ruby, !! operator (a/k/a the double-bang) [duplicate]

ruby operators

ruby

What does << mean in Ruby?

ruby arrays operators

ruby

Ruby ternary operator without else

ruby operators conditional conditional-operator

ruby