Calling a Namespaced JavaScript Function from Flash

Question

Can I use ExternalInterface to call a namespaced JavaScript function?

//JavaScript
foo.bar = function(baz) {}

// AS3
import flash.external.ExternalInterface;
ExternalInterface.call('foo.bar', baz);

Taryn · Accepted Answer · 2013-07-19 15:25:07Z

2

The documentation of ExternalInterface.call is a little misleading. it states the first parameter must be a function name, which is not the whole truth. it can be any string that can be evaluated as a proprer JS expression. In fact

ExternalInterface.call(func, param_1, ... , param_n);

is equivalent to

eval(func)(param_1, ... , param_n);

so you may just as well do the following

ExternalInterface.call("function (foo) { alert(foo); return true; }","test");

this technique is sometimes used for Flash JS injection. hope this clarifies things ...

edited Jul 19, 2013 at 15:25

Taryn

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answered Feb 9, 2010 at 19:02

back2dos

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Comments

Cory Petosky · Accepted Answer · 2010-02-09 17:10:42Z

1

Yes. Yes you can.

answered Feb 9, 2010 at 17:10

Cory Petosky

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1 Comment

Kyle Hayes Over a year ago

The question was purely theoretical, so in the way that I called it above is correctly for calling a namespaced function?

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