Plain Old Clojure Object

In Clojure, metadata is data that is orthogonal to the logical value of an object. For example, a person's first and last names are plain old data. The fact that a.... Data is passed to child components using plain old Clojure data types. ... Reagent assumes by default that two objects are equal if they are the same object.. They provide good hash values ... entry) map as the item, and returns a new map which is the old map plus the entries from the new, which may overwrite entries.... The only time when a plain old keyword's convenience overcomes its ... (ns my.game-object (:require [my.vector :as v])) (s/def ::position ::v/2d).... Just use a plain old Clojure vector: ["Emma" "Andromeda Strain" "2001"]. If you do need to deal with mutable Java objectsperhaps you are getting them back.... What are good use cases for transducers? When performing a series ... creates a new internal Namespace object (if it does not yet exist). makes that namespace.... I'm also fond of the clojure.contrib.repl-utils/show from old contrib if ... you to introspect objects and classes in the REPL, but the code is a good.... What you are seeing here is metadata pertaining to the doc function; Clojure ... to the actual plain old Java exception object, so you can analyze and introspect it.... An object or a datatype (described in the next section) can declare that it ... and they cannot match the performance of instance fields in plain old Java objects.. Namespace provides a way to organize different Clojure objects into to logical groups. ... user=> (+ "Good " "morning") ClassCastException java.lang. ... user=> (def old-seq '(1 2)) #'user/old-seq user=> (def new-seq (cons 0 old-seq)).... Top Contributors. Migrate your old ClojureDocs account ... to Clojure and not sure where to start? Here are a few good resources to get you off on the right foot:.. Plain Old Clojure Object ( http://www.dotkam.com/2015/08/12/plain-old-clojure-object/ ) - poco.clj.. Good implementations already exist for JVM (ABCL, Kawa, SISC et al) ... Old way - each language defines its own runtime ... Object Orientation is overrated.. Clojure is a modern, dynamic, and functional dialect of the Lisp programming language on the ... Older version, still maintained ... As a Lisp dialect, Clojure supports functions as first-class objects, a readevalprint loop (REPL), and a macro.... Plain Old Clojure Object. In Java it is not that simple for several reasons.. Java maps are mutable, there are no idiomatic tools to inspect, destructure them, Java (programmers) like different types for different POJOs, etc... Define your own: classes. Defining classes in Clojure is simple, at least when they implement immutable Value Objects. defrecord takes a class.... What you are seeing here is metadata pertaining to the doc function; Clojure ... to the actual plain old Java exception object, so you can analyze and introspect it.... Clojure supports arity overloading in a single function object, self-reference, and ... from an immutable collection means creating a new collection just like the old one but with the needed change. ... A good example of this is the seq interface.. Takes a Java object and returns a read-only implementation of the map ... HotSpot does a good job at optimizing the overflow check, which will yield an.... Importantly, ClojureScript functions are implemented as plain old JavaScript ... ClojureScript's primitive types or other collections, as well as any other object that...

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