DynJSECMAScript 運(yùn)行環(huán)境

DynJS 是一個(gè)在 JVM 上實(shí)現(xiàn)的 ECMAScript 運(yùn)行環(huán)境。

示例代碼：

$ wget -q -O dynjs-0.2.0.zip http://bit.ly/dynjs-020-download
$ unzip dynjs-0.2.0.zip
$ ./bin/dynjs --console
DynJS console.
Type exit and press ENTER to leave.
dynjs> var x = {}
dynjs> x.name = "Douglas"
dynjs> var speak = function(name) { print(name); }
dynjs> speak(x.name)
Douglas

$ cat my_app.js
print("Hi! What's your name?");
var sayHello = function(name) {
    print("Hello " + name);
}

System = java.lang.System;
scanner = new java.util.Scanner(System.in);
name = scanner.nextLine();
sayHello(name);

$ ./bin/dynjs my_app.js
Hi! What's your name?
Douglas
Hello Douglas
^D