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Passando objetos depois do construtor em JS no Rhino. Serve para implementar interfaces com uma sintaxe parecida com classes anônimas: http://docs.oracle.com/javase/6/docs/technotes/guides/scripting/programmer_guide/index.html#jsimplement
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<html> | |
<body> | |
<div id="console"> | |
- | |
</div> | |
</body> | |
<script type="text/javascript"> | |
println = function(texto){ | |
var console = document.querySelector("div#console"); | |
console.textContent = texto; | |
}; | |
</script> | |
<script type="text/javascript" src="pessoa.js"></script> | |
</html> |
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var Pessoa = function(nome, email, dados) { | |
this.nome = nome; | |
this.email = email; | |
this.dados = dados; | |
println(dados.cpf); | |
}; | |
var maria = new Pessoa("maria", "m@gmail.com", { cpf: "222222222222" } ); | |
// passando um objeto como último parâmetro | |
// funciona normalmente tanto no Rhino (o Js do Java) como em um Chrome da vida | |
var joao = new Pessoa("joao", "j@gmail.com") { cpf: "111111111111" }; | |
// passando um bloco de código fora dos parênteses de invocação do construtor de Pessoa | |
// funciona só no Java | |
// no Chrome acontece o erro: "Uncaught SyntaxError: Unexpected token { " |
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import java.io.InputStreamReader; | |
import javax.script.ScriptEngine; | |
import javax.script.ScriptEngineManager; | |
import javax.script.ScriptException; | |
public class Programa { | |
public static void main(String[] args) throws ScriptException { | |
ScriptEngineManager factory = new ScriptEngineManager(); | |
ScriptEngine engine = factory.getEngineByName("JavaScript"); | |
engine.eval(new InputStreamReader(Programa.class.getResourceAsStream("/pessoa.js"))); | |
} | |
} |
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