Editorial Reviews:
Synopsis
DIVpIt's all in the name: iLearn You a Haskell for Great Good!/i is a hilarious, illustrated guide to this complex functional language. Packed with the author's original artwork, pop culture references, and most importantly, useful example code, this book teaches functional fundamentals in a way you never thought possible./ppYou'll start with the kid stuff: basic syntax, recursion, types and type classes. Then once you've got the basics down, the real black belt master-class begins: you'll learn to use applicative functors, monads, zippers, and all the other mythical Haskell constructs you've only read about in storybooks./ppAs you work your way through the author's imaginative (and occasionally insane) examples, you'll learn to:/p ulliLaugh in the face of side effects as you wield purely functional programming techniques/li liUse the magic of Haskell's "laziness" to play with infinite sets of data/li liOrganize your programs by creating your own types, type classes, and modules/li liUse Haskell's elegant input/output system to share the genius of your programs with the outside world/li /ulpShort of eating the author's brain, you will not find a better way to learn this powerful language than reading iLearn You a Haskell for Great Good!/i/p/div div class="aplus" span class="h1"strongExcerpt from the Introduction/strong/p/span pstrongHaskell is fun, and that’s what it’s all about!/strong/p pThis book is aimed at people who have experience programming in imperative languages—such as C++, Java, and Python—and now want to try out Haskell. But even if you don’t have any significant programming experience, I’ll bet a smart person like you will be able to follow along and learn Haskell./p pMy first reaction to Haskell was that the language was just too weird. But after getting over that initial hurdle, it was smooth sailing. Even if Haskell seems strange to you at first, don’t give up. Learning Haskell is almost like learning to program for the first time all over again. It’s fun, and it forces you to think differently./p pstrongNOTE/strongbr / iIf you ever get really stuck, the IRC channel/i #haskell ion the freenode network is a great place to ask questions. The people there tend to be nice, patient, and understanding. They’re a great resource for Haskell newbies./i pstrongSo, What's Haskell?/strong/p table align="right" bgcolor="#ffffff" cellpadding="3" cellspacing="3" tbodytr td align="center"img src="http://g-ecx.images-amazon.com/images/G/01/books/oreilly/fx152x149.jpg" align="center" border="0"/td /tr /tbody/table pHaskell is a ipurely/i functional programming language./p pIn iimperative/i programming languages, you give the computer a sequence of tasks, which it then executes. While executing them, the computer can change state. For instance, you can set the variable a to 5 and then do some stuff that might change the value of a. There are also flow-control structures for executing instructions several times, such as for and while loops./p pPurely functional programming is different. You don’t tell the computer what to do—you tell it what stuff is. For instance, you can tell the computer that the factorial of a number is the product of every integer from 1 to that number or that the sum of a list of numbers is the first number plus the sum of the remaining numbers. You can express both of these operations as functions./p p Read the Introduction (PDF) in its entirety./p /div
