Mal
Mal Web REPL
Mal at a glance
Datatypes
| Maps | {"key1" "val1", "key2" 123} |
| Lists | (1 2 3 "four") |
| Vectors | [1 2 3 4 "a" "b" "c" 1 2] |
| Scalars | a-symbol, "a string", 123, nil, true, false |
Functions
| Calling | (<function> <args*>) |
| Defining named functions | (def! <name> (fn* [<args*>] <action*>)) |
| Anonymous function | (fn* |name| [<args*>] <action*>) |
Useful Macros and Special Forms
| Conditionals | if cond or |
| Multiple Actions (side-effects) | (do <action*>...) |
| Defining things | def! defmacro! let* |
Useful Functions
| Math | + - * / |
| Comparison/Boolean | = < > <= >= not |
| Predicates | nil? true? false? symbol? list? vector? map? sequential? |
| Data processing | map apply |
| Data create | list vector hash-map |
| Data inspection | first rest get keys vals count get nth contains? empty? |
| Data manipulation | conj cons concat assoc dissoc |
| Lists and Vectors | first rest nth |
| Hash Maps | get keys vals contains? |
JavaScript Interop
| Evaluate JavaScript | (js* "JS string to eval") |
| Method call/access | (. js-fn arg...) |