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Ruby array mutation

Ruby reference for ruby array mutation.

Syntax

tags = ["ruby"]
tags << "web"
tags.push("cli")

Examples

Ruby array mutation example

A focused example you can adapt while practising.

tags = ["ruby"]
tags << "web"
tags.push("cli")

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

Ruby Arrays & Hashes
Arrays are ordered collections written with square brackets. Hashes store key-value pairs and are commonly written with symbol keys such as :name.Ruby array indexing
Ruby reference for ruby array indexing.Ruby hash literals
Ruby reference for ruby hash literals.Ruby Hash#fetch
Ruby reference for ruby hash#fetch.