cljs-bootstrap
cljs-bootstrap Web REPL
ClojureScript at a glance - PDF | Searchable docs
Datatypes
| Map | {:key1 :val1, :key2 :val2} |
| Vectors | [1 2 3 4 :a :b :c 1 2] |
| Sets | #{:a :b :c 1 2 3} |
| Scalars | a-symbol, :a-keyword, "a string" |
| Arrays | (array 1 2 3) |
Functions
| Calling | (<function> <args*>) |
| Defining named functions | (defn <name> [<args*>] |constraints| <actions*>) |
| Anonymous function | (fn |name| [<args*>] |constraints| <actions*>) |
| Anonymous inline function | #(<action> |%,%2,%3, or %&|) |
Useful Macros
| Conditionals | if if-let cond condp and or when when-let |
| Nesting, chaining, and Interop | -> ->> doto .. . |
| Defining things | def defn fn let binding defmulti defmethod deftype defrecord reify this-as |
Useful Functions
| Math | + - * / quot rem mod inc dec max min |
| Comparison | = == not= < > <= >= |
| Predicates | nil? identical? zero? pos? neg? even? odd? true? false? |
| Data processing | map reduce filter partition split-at split-with |
| Data create | vector vec hash-map set for list list* |
| Data inspection | first rest get get-in keys vals count get nth contains? find |
| Data manipulation | seq into conj cons assoc assoc-in dissoc zipmap merge merge-with select-keys update-in |
| Arrays | first rest get get-in keys vals count get nth contains? find |
JavaScript Interop
| Method call | (.the-method target-object args...) |
| Property access | (.-property target-object -property) |
| Property setting | (set! (.-title js/document) "Hi!") |
| Direct JavaScript | (js/alert "Hello Cleveland!") |
| External library use | (.text (js/jQuery "#title") "ClojureScript Rocks!") |