Ruby Hash#fetch

Syntax

user = { name: "Ada" }
puts user.fetch(:name)
puts user.fetch(:city, "Unknown")

Examples

user = { name: "Ada" }
puts user.fetch(:name)
puts user.fetch(:city, "Unknown")

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

• Ruby documentation

Related Ruby documentation