Why spend time on coding problems that others have already solved when you could be making real progress on your Ruby project? This updated cookbook provides more than 350 recipes for solving common problems, on topics ranging from basic data structures, classes, and objects, to web development, distributed programming, and multithreading.Revised for Ruby 2.1, each recipe includes a discussion on why and how the solution works. Youll find recipes suitable for all skill levels, from Ruby newbies to experts who need an occasional reference. With Ruby Cookbook, youll not only save time, but keep your brain percolating with new ideas as well.Recipes cover:Data structures including strings, numbers, date and time, arrays, hashes, files and directoriesUsing Rubys code blocks, also known as closuresOOP features such as classes, methods, objects, and modulesXML and HTML, databases and persistence, and graphics and other formatsWeb development with Rails and SinatraInternet services, web services, and distributed programmingSoftware testing, debugging, packaging, and distributingMultitasking, multithreading, and extending Ruby with other languages.