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Ruby booleans and nil

Ruby reference for ruby booleans and nil.

Syntax

active = true
missing = nil
puts active && !missing

Examples

Ruby booleans and nil example

A focused example you can adapt while practising.

active = true
missing = nil
puts active && !missing

Best practices

  • Start with the smallest working example, then adapt it to your project.
  • Use the language’s standard library and idioms before introducing extra dependencies.

At a glance

Purpose
Expressive scripting and applications
File extension
.rb
Runs in
Ruby interpreter
Usually used with
Ruby standard library and gems

Specifications & further reading

Related Ruby documentation

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