導讀： 簡介: 內容介紹：Whether you 簡介:


內容介紹：
Whether you've come to Ruby because of the Rails web development framework --Ruby's killer app -- or simply because it's a relatively clean, powerful and expressive language that's useful for a lot of applications, the Ruby Pocket Reference is organized to help you find what you need quickly. This book not only will get you up to speed on how Ruby works, it provides you with a handy reference you can use anywhere, anytime.
In this book, you find essential information on:
Reserved words, operators, comments, numbers, variables, ranges, and symbols
Predefined variables andglobal constants
Conditional statements, method use, classes, and modules (mixins)
Lists of methods from the Object, String, Array, and Hash classes and the Kernel module
sprintf andtime formatting directories
Interactive Ruby (irb) and the Ruby debugger
Ruby documentation
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