Updated for Ruby 2.2

this handy reference offers brief yet clear explanations of Ruby’s core elements—from operators to blocks to documentation creation—and highlights the key features you may work with every day. Need to know the correct syntax for a conditional? Forgot the name of that String method? This book is organized to help you find the facts fast.

Ruby Pocket Reference, 2nd Edition

is ideal for experienced programmers who are new to Ruby. Whether you’ve come to Ruby because of Rails, or you want to take advantage of this clean, powerful, and expressive language for other applications, this reference will help you easily pinpoint the information you need.

What you’ll find

detailed reference material for:

Keywords, operators, comments, numbers, and symbols

Variables, pre-defined global variables, and regular expressions

Conditional statements, method use, classes, and exception handling

Methods for the BasicObject, Object, Kernel, String, Array, and Hash classes

Time formatting directives

New syntax since Ruby 1.9