Clojure reader conditional

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August undefined, 2024

WebJan 25, 2024 · Sorted by: 6. some general patterns for adapting things to the Clojure syntax. move the ( to the left of the function or opperator. move opperators to the left of the … WebBefore reader conditionals were introduced, the same goal of sharing code between platforms was solved by a Leiningen plugin called cljx. cljx processes files with the .cljx …

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WebMar 8, 2024 · The current repl-only issue aside, it work fine for data_readers.cljc with conditional content where only the values are conditional, such as: {foo/bar #? (:clj xxx :cljs yyy)} but wouldn't work for this (which is valid content): #? (:clj {foo/bar clojure.core/identity}) I'm not saying the above is great style ofc. WebSep 28, 2024 · Yes, that's possible and especially trivial if the common code is platform independent, for example: (defn my-reduce [xs] (reduce + xs)) All of the functions and forms in the above code exist in both ClojureScript and Clojure, so you don't need to do anything extra to make it work. overlignification

How to write clojure conditional statements - Stack Overflow

WebMay 30, 2024 · Clojure’s core library is so rich, it’s easy to miss the other threading macros. some-> and some->> are useful in that they short-circuit as soon as the threaded value or collection evaluates to... WebGoals and features. Nbb's main goal is to make it easy to get started with ad hoc CLJS scripting on Node.js. Additional goals and features are: Fast startup without relying on a custom version of Node.js. Small artifact (current size is around 1.2MB). First class macros. Support building small TUI apps using Reagent. WebClojure, ClojureScript, and ClojureCLR should load both .cljc (which may have reader conditionals) and their own platform-specific files as source files. For .cljc files: the reader … over like a fat rat fonda rae lyrics

clojure-site/reader_conditionals.adoc at master · clojure/clojure …

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http://cljs.github.io/api/ WebDec 13, 2015 · Clojure has lots of operators for dealing with conditional statements: if, cond, condp, case and when. Each of these is useful for different situations. Let’s take a look at them in turn: if if expression in Clojure returns a value similar to ternary operator in c# compared to a statement The ternary expression in C# using the ? operator as follows over lift chair tableWebCLJS API ClojureScript API Welcome! This is a comprehensive reference for ClojureScript's syntax, standard library, and compiler API. See the Cheatsheet for quick reference Documentation is versioned and supplemented by curated descriptions,examples, and cross-refs. Community contributions welcome. Current Version: 1.11.60 Version Table overlimited

"WebFeb 25, 2024 · The standard reader conditional behaves similarly to a traditional cond. The syntax for usage is #? and looks like: #? (:clj (Clojure expression) :cljs (ClojureScript expression) :cljr (Clojure CLR expression) :default (fallthrough expression)) Share Improve this answer Follow answered Feb 25, 2024 at 16:00 cfrick 34.2k 6 55 67 Add a comment " - Clojure reader conditional

Clojure reader conditional

WebMay 21, 2015 · A new feature in the upcoming Clojure 1.7 release is Reader Conditionals. Reader Conditionals let you write portable Clojure/ClojureScript code in the same file, … WebOct 11, 2024 · Reader Conditionals Web Development with Clojure, Third Edition by Dmitri Sotnikov, Scot Brown The Pragmatic Programmers. Stop developing web apps …

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WebStatic analyzer and linter for Clojure code that sparks joy - clj-kondo/reader.cljs at master · clj-kondo/clj-kondo WebJun 15, 2016 · I encourage all projects that can use Clojure 1.7 or higher to use Reader Conditionals rather than cljx. If you need reader conditional support for projects using Clojure 1.6 or earlier, see the cljsee Leiningen plugin. Chas and I will not be doing additional work on cljx, but we are available for commerical support if you absolutely need it.

WebJun 15, 2024 · cljs.reader/read-string fails for a input that clojure read-string accepts; Is it possible to create a tagged literal reader for a clojure.core.Vec? Why do some … WebFortunately for Clojure developers like us, most of the tech to read configuration in a safe, secure and extensible way already exists in the Clojure core library (EDN). Tag literals Aero provides a small library of tag literals. env Use #env to reference an environment variable. { :database-uri #env DATABASE_URI}

Webreader-conditional clojure.core Available since 1.7(source) (reader-conditional form splicing?) Construct a data representation of a reader conditional. If true, splicing? …

WebReader conditionals are integrated into the Clojure reader, and don’t require any extra tooling. To use reader conditionals, all you need is for your file to have a .cljc extension. Reader conditionals are expressions, and can be manipulated like ordinary Clojure expressions. For more technical details, see the reference page on the reader.

WebThe reader takes text (Clojure source) and returns Clojure data, which is subsequently compiled and evaluated. Reader macros tell the Clojure reader how to read something … overlight ultraWebMay 4, 2015 · There are Clojure dialects (Clojure, ClojureScript, ClojureCLR) hosted on several different platforms. We wish to write libraries that can share as much portable … over light bulb coverWebI spent a few puzzled minutes trying to understand the following message from the Clojure compiler: CompilerException java.lang.RuntimeException: Conditional read not allowed, compiling: Eventually I realised it was because I was trying to use reader conditionals in a .clj file that I hadn't renamed to cljc. overlightingWeb(Only allowed in .cljc files or the REPL). Allows the reader to conditionally select from the given list of forms depending on available "feature" keys. For example: #? (:clj "Clojure":cljs "ClojureScript")ClojureScript's reader is configured with the :cljs feature key, making the expression above read as "ClojureScript".Clojure's reader is similarly configured with … over limit credit car affect credit scoreWebJun 10, 2015 · To use Reader Conditionals, all you need is for your file to have a .cljc extension and to use Clojure 1.7 or ClojureScript 0.0-3196 or higher. Reader … ram promaster imagesWebApr 27, 2016 · RuntimeException Conditional read not allowed clojure.lang.Util.runtimeException (Util.java:221) I was able to find this article which … ram promaster incentivesWebclojure.core. (read stream eof-error? eof-value recursive?) Reads the next object from stream, which must be an instance of java.io.PushbackReader or some derivee. stream … ram promaster laptop mount