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clj-rhino - easy api to use rhino from clojure

clj-rhino

a nice wrapper to handle rhino from clojure

project home: https://github.com/marianoguerra/clj-rhino

who?

marianoguerra

why?

the java api for rhino is not really nice

how?

you can see the tests for some usage, here are some REPL examples:

user=> (require '[clj-rhino :as js])
nil
user=> (def sc (js/new-safe-scope))
#'user/sc
user=> (js/eval sc "1 + 1")
2
user=> (js/eval sc "a = 1 + 1")
2
user=> (js/get sc "a")
2
user=> (js/get sc "b")
#<UniqueTag org.mozilla.javascript.UniqueTag@172897f: NOT_FOUND>
user=> (js/undefined? (js/get sc "b"))
true
user=> (js/get sc "b" :w00t?)
:w00t?
user=> (js/defined? (js/get sc "b"))
false
user=> (js/set! sc "b" 42)
nil
user=> (js/defined? (js/get sc "b"))
true
user=> (js/get sc "b" :w00t?)
42
user=> (js/eval sc "a = {name: 'spongebob'}")
#<NativeObject [object Object]>
user=> (js/get-in sc [:a :name])
"spongebob"
user=> (js/get-in sc [:a :age])
#<UniqueTag org.mozilla.javascript.UniqueTag@172897f: NOT_FOUND>
user=> (js/get-in sc [:a :age] :dont-know)
:dont-know
user=> (def compiled-fun (js/compile-function sc "function (a, b) { return a + b; }" :filename "foo.js"))
#'user/compiled-fun
user=> (js/set! sc "add" compiled-fun)
nil
user=> (js/eval sc "add(1, 3)")
4.0
user=>

license?

it seems the clojure people under this circumstances say something like:

Copyright © 2013 marianoguerra

Distributed under the Eclipse Public License, the same as Clojure.