Read e-book online Clojure Programming PDF

By Chas Emerick, Brian Carper, Christophe Grand

ISBN-10: 1449394701

ISBN-13: 9781449394707

Clojure is a pragmatic, general-purpose language that gives expressivity rivaling different dynamic languages like Ruby and Python, whereas seamlessly making the most of Java libraries, companies, and all the assets of the JVM atmosphere. This e-book is helping you examine the basics of Clojure with examples pertaining to it to the languages you recognize already, within the domain names and themes you're employed with on a daily basis. See how this JVM language might help put off pointless complexity out of your programming perform and open up new recommendations for fixing the main demanding problems.

Clojure Programming demonstrates the language’s flexibility by way of exhibiting the way it can be utilized for universal projects like internet programming and dealing with databases, up via extra difficult purposes that require secure, powerful concurrency and parallelism, facts research, and extra. This in-depth glance is helping tie jointly the entire Clojure improvement event, from the way to manage your venture and an creation to Clojure construct tooling, to an instructional on tips on how to utilize Clojure’s REPL in the course of improvement, and the way to set up your entire program in a cloud environment.

* how one can use Clojure whereas leveraging your funding within the Java platform
* comprehend the benefits of Clojure as an effective Lisp for the JVM
* See how Clojure is used this day in numerous functional domain names
* become aware of how Clojure gets rid of the necessity for lots of verbose and intricate layout styles
* set up huge or small net functions to the cloud with Clojure

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Download e-book for kindle: Clojure Programming by Chas Emerick, Brian Carper, Christophe Grand

Clojure is a realistic, general-purpose language that provides expressivity rivaling different dynamic languages like Ruby and Python, whereas seamlessly profiting from Java libraries, companies, and the entire assets of the JVM surroundings. This booklet is helping you research the basics of Clojure with examples touching on it to the languages you recognize already, within the domain names and subject matters you're employed with each day. See how this JVM language will help get rid of pointless complexity out of your programming perform and open up new ideas for fixing the main difficult problems.

Clojure Programming demonstrates the language’s flexibility by means of exhibiting the way it can be utilized for universal projects like net programming and dealing with databases, up via extra tough functions that require secure, potent concurrency and parallelism, facts research, and extra. This in-depth glance is helping tie jointly the total Clojure improvement adventure, from how one can arrange your venture and an advent to Clojure construct tooling, to an academic on easy methods to utilize Clojure’s REPL in the course of improvement, and the way to installation your entire software in a cloud environment.

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* comprehend some great benefits of Clojure as an effective Lisp for the JVM
* See how Clojure is used this day in different useful domain names
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Additional info for Clojure Programming

Example text

While symbols evaluate to the values held by vars, vars themselves can be referred to by prefixing a symbol with #'; see “Referring to Vars: var” on page 44. • Instances of reference types can be dereferenced (yielding the value contained within the reference object) by prefixing @ to a symbol naming the instance; see “Clojure Reference Types” on page 170. • The reader provides three bits of special syntax for macros: `, ~, and ~@. Macros are explored in Chapter 5. • While there are technically only two Java interop forms, the reader provides some sugar for interop that expands into those two special forms; see “Java Interop: .

Suppressing Evaluation: quote quote suppresses evaluation of a Clojure expression. The most obvious impact of this relates to symbols, which, if they name a var, evaluate to that var’s value. With quote, evaluation is suppressed, so symbols evaluate to themselves (just like strings, numbers, and so on): (quote x) ;= x (symbol? (quote x)) ;= true There is reader syntax for quote; prefixing any form with a quote character (') will expand into a usage of quote: 18. Special forms are always given precedence when resolving symbols in function position.

Flexible numeral bases You can specify the base of an integer in a prefix BrN, where N is the digits that represent the desired number, and B is the base or radix by which N should be interpreted. So we can use a prefix of 2r for binary integers (2r111 is 7), 16r for hexadecimal (16rff is 255), and so on. 11 11. BigInteger’s radix support. Note that even though BigInteger is used for parsing these literals, the concrete type of the number as emitted by the reader is consistent with other Clojure integer literals: either a long or a big integer if the number specified requires arbitrary precision to represent.

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Clojure Programming by Chas Emerick, Brian Carper, Christophe Grand


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