Download CoffeeScript: Accelerated JavaScript Development (Pragmatic) by Trevor Burnham PDF

By Trevor Burnham

For 15 years, dynamic web pages has been written in one language: JavaScript. Now, for the 1st time, programmers have an alternate that does not upload an additional layer of abstraction or require plugins. CoffeeScript offers all of JavaScript's performance wrapped in a purifier, extra succinct syntax that encourages use of "the solid components" of the language.CoffeeScript: speeded up JavaScript Development is aimed toward programmers who are looking to get a grip in this new language whereas enhancing their figuring out of JavaScript. you will find out about time-saving positive aspects like record comprehensions and splats, set up your code into modules with extensible periods, and get your toes rainy with jQuery by way of construction a fast moving be aware game.The publication additionally introduces Node.js, the main server-side JavaScript setting. Node and CoffeeScript turn into an exceptional fit, permitting you to enhance the back and front ends of an online program within the similar language. With CoffeeScript on your toolkit, you could write nice code anyplace.

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So if you’re a Rubyist, great! You’ve got a head start. If not, don’t sweat it; everything will fall into place once you have a few examples under your belt. [11] While I try to be clear, the only entities to whom programming languages are completely straightforward are computers—and they buy very few books. How This Book Is Organized We’ll start our journey by discovering the various ways that we can compile and run CoffeeScript code. Then we’ll delve into the nuts and bolts of the language. Each chapter will introduce concepts and conventions that tie into our ongoing project (see the next section).

If you don’t want to return anything, use return by itself. So far, our function has been anonymous. log hi() Once again, we get this response: Hello, functions! Naming a function in CoffeeScript just means assigning it to a variable. Note that we could have written do hi instead of hi(). But in practice, do is usually only used to create scope, especially during iteration. More on that in ​Scope in Loops​. A Tale of Two Function Declaration Syntaxes In JavaScript, there are two ways of defining a function.

5 Ready to Roll! js and npm. You’ve also gotten your favorite text editor on speaking terms with the language, explored some of the ways you can use CoffeeScript as part of your development workflow, and considered the challenge of debugging. So now that you know how to run CoffeeScript code, it’s about time we went into the nuts and bolts of the language itself. The rest of this book will be jam-packed with snippets of code. The best way to follow along is to run these from your favorite text editor; if you don’t understand how they work, try tweaking a line or two to see what happens.

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