Mon, 02 Jul 2018 16:43:07 +0100
Merge
1 /*
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30 */
32 // how to pass arbitrary "this" object for eval'ed script?
34 var obj = { foo: 44 };
36 // the following won't work. eval.apply is indirect eval call
37 // and so 'this' will be global object always! So, this
38 // line will print 'undefined'
39 eval.apply(obj, [ " print(this.foo)" ]);
41 obj.myEval = eval;
43 // still won't work - still indirect 'eval' call!
44 // still undefined is printed!
45 obj.myEval("print(this.foo)");
47 function func(code) {
48 eval(code);
49 }
51 // eval called inside func and so get's func's "this" as it's "this"!
52 // So, 44 is printed
54 func.apply(obj, [ "print(this.foo)" ]);