Ruby Introduction
Ruby is a programming language. Programs are plain text files that end in .rb.
A first program
A Ruby program is plain text in a file. This program prints one line of text.
puts "My first Ruby program"Two lines in order
Two puts statements run in order. The first line prints before the second line.
puts "First line from Ruby"
puts "Second line from Ruby"Example
puts "Ruby is a programming language"
puts "Ruby files end in .rb"
puts "Ruby can print text"Key points
- Ruby code is plain text in a file.
- Ruby files use the .rb ending.
- puts prints a line of text.
- Each puts statement prints one line.
In this example, three puts statements run in order. The first statement prints a line that names Ruby as a programming language. The second statement prints the file ending line. The third statement prints a line about printing text.
Try it Yourself
Edit the code, then press Run.
Running is simulated · Programiz Ruby Compiler
Exercise
What does puts do in Ruby?