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  • Book Overview & Buying The Clojure Workshop
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The Clojure Workshop

The Clojure Workshop

By : Joseph Fahey , Thomas Haratyk , Scott McCaughie , Yehonathan Sharvit , Konrad Szydlo
4.3 (13)
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The Clojure Workshop

The Clojure Workshop

4.3 (13)
By: Joseph Fahey , Thomas Haratyk , Scott McCaughie , Yehonathan Sharvit , Konrad Szydlo

Overview of this book

The Clojure Workshop is a step-by-step guide to Clojure and ClojureScript, designed to quickly get you up and running as a confident, knowledgeable developer. Because of the functional nature of the language, Clojure programming is quite different to what many developers will have experienced. As hosted languages, Clojure and ClojureScript can also be daunting for newcomers because of complexities in the tooling and the challenge of interacting with the host platforms. To help you overcome these barriers, this book adopts a practical approach. Every chapter is centered around building something. As you progress through the book, you will progressively develop the 'muscle memory' that will make you a productive Clojure programmer, and help you see the world through the concepts of functional programming. You will also gain familiarity with common idioms and patterns, as well as exposure to some of the most widely used libraries. Unlike many Clojure books, this Workshop will include significant coverage of both Clojure and ClojureScript. This makes it useful no matter your goal or preferred platform, and provides a fresh perspective on the hosted nature of the language. By the end of this book, you'll have the knowledge, skills and confidence to creatively tackle your own ambitious projects with Clojure and ClojureScript.
Table of Contents (17 chapters)
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2
2. Data Types and Immutability

Syntax Quoting

A lot of the art of writing macros lies in mastering the separation between expansion code and output code. A lot of the control over that separation depends on deciding what gets quoted when the macro is expanded and what does not get quoted. The previous example started to reveal the limits of the standard quote special form. Once a list has been quoted, all its symbols and sub-lists are quoted as well. As such, quote is a fairly heavy-handed tool.

For this reason, Clojure, like many Lisps, provides a more sophisticated quoting mechanism called syntax quoting. Syntax quoting uses ', the backtick character, instead of the standard single quote. When used by itself, the backtick has more or less the same behavior as quote: all symbols and sub-lists are quoted by default. The difference is that syntax quoting allows us to mark certain forms, sub-lists, or symbols that should not be quoted.

With syntax quoting, we can simplify our macro from the previous section...

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The Clojure Workshop
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