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POwhat's the javascript function scope in firefox components?
 

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  1. POwhat's the javascript function scope in firefox components?
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    <p>I am making a firefox component using javascript.<br> But i am always confused about what is the global scope of the current javascript function, which results in the following questions?</p> <ol> <li><p>I understand some basic concept about global scope of js function in normal case, but i want to know, when is the global scope of a function determined? The time when function is created(defined), or the time when the function is called?</p></li> <li><p>Is there a way to show(print some information) the current global scope of a javascript function?</p> <p><code>following question is firefox component specific</code> </p></li> <li><p>For firefox component, does each component have a global scope itself? (which means each function of the component will be run in itself global scope ), or every components have the same global scope?<br> If same, what's that?</p></li> <li><p>For example, in such case<br> <code>sorry for this boring example, i just make it as clear as possible.</code><br> I make a sandbox via <code>Components.utils.Sandbox(&lt;scope1&gt;)</code>. I define some function in a ff component( i called <code>&lt;scope2&gt;</code> ) ,and inject a variable in to sandbox by : <code>sandbox.external = this;</code> ( "this" is just a component itself, which in a scope2 )<br> After these step, i run some code in sandbox by <code>Components.utils.evalInSandbox( &lt;code&gt; , sandbox);</code> , and <code>&lt;code&gt;</code> contains a <code>function sandboxFoo()</code> that call <code>external.foo()</code></p> <p>1). what's the global scope of <code>sandboxFoo</code> when it is running? I think it should be </p> <p>2). what's the global scope of <code>external.foo</code> when it is called by <code>sandboxFoo</code>? Is it the <code>&lt;scope1&gt;</code> or <code>&lt;scope2&gt;</code>? Any documentation? </p></li> </ol>
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    1. USWayne Burkett
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    1. CODo you really mean a component or a JavaScript module?
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      1. USFelix Kling
    2. COI mean a XPCOM component write with javascript.
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