小編典典

String script = “function abc(x,y) {return x+y;}”;

Context context = Context.enter();

try {

ScriptableObject scope = context.initStandardObjects();

Scriptable that = context.newObject(scope);

Function fct = context.compileFunction(scope, script, “script”, 1, null);

Object result = fct.call(

context, scope, that, new Object[] {2, 3});

System.out.println(Context.jsToJava(result, int.class));

} finally {

Context.exit();

}

更新：將函數以及其他函數和變量一起加載到范圍中時

String script = "function abc(x,y) {return x+y;}"

+ "function def(u,v) {return u-v;}";

Context context = Context.enter();

try {

ScriptableObject scope = context.initStandardObjects();

context.evaluateString(scope, script, "script", 1, null);

Function fct = (Function)scope.get("abc", scope);

Object result = fct.call(

context, scope, scope, new Object[] {2, 3});

System.out.println(Context.jsToJava(result, int.class));

} finally {

Context.exit();

}

2020-09-23

總結

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