WebJan 28, 2011 · The source for clojure.contrib.seq/positions and it's dependency clojure.contrib.seq/indexed is: (defn indexed "Returns a lazy sequence of [index, item] pairs, where items come from 's' and indexes count up from zero. WebReturns the substring of s beginning at start inclusive, and ending at end (defaults to length of string), exclusive.
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WebMar 28, 2009 · From Learning Clojure "In most Lisp dialects, there is a value semi-equivalent to Java null called nil. In Clojure, nil is simply Java's null value, end of story." Since Clojure compiles to java bytecode, it sounds like any reference to nil is just a null object reference in the underlying JVM. Webfunction. Usage: (escape s cmap) Return a new string, using cmap to escape each character ch from s as follows: If (cmap ch) is nil, append ch to the new string. If (cmap ch) is non-nil, append (str (cmap ch)) instead. Added in Clojure version 1.2. Source. flawil region
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Web2 days ago · Reading Clojure Characters. This page explains the Clojure syntax for characters that are difficult to "google". Sections are not in any particular order, but related items are grouped for ease. Please refer to the reader reference page as the … Clojure is a dynamic development environment where you interact with … Generally, Clojure code should use keyword namespaces that are sufficiently unique … The Clojure REPL gives the programmer an interactive development experience. … Higher order functions allow us to compose functions. This means we can write … Clojure’s = is true when comparing immutable values that represent the … A 3-way comparator takes 2 values, x and y, and returns a Java 32-bit int that is … Clojure's flexibility, interactive development, and tooling have helped us to iterate … Clojure Contrib Libraries. Documentation for Clojure contrib libraries: Contrib APIs. … The Clojure core team values those that engage with the current stream of … Web(= (.charAt "clojure" 0) \c) or (.startsWith "clojure" "c") It should be as fast as it can get and doesn't allocate a seq object (and in your second example an additional string) which is immediately thrown away again just to do a comparison. Share Improve this answer Follow answered Oct 19, 2010 at 18:42 kotarak 17k 2 49 39 5 Webchar - clojure.core ClojureDocs - Community-Powered Clojure Documentation and Examples char clojure.core Available since 1.1 ( source) (char x) Coerce to char © Rich … flawil wappen