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POJSON.stringify not converting array.object correctly
 

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    <p>I'm having a problem with JSON.stringify</p> <p>I'm trying to pull all the meta tags out of the page and pass them to a firefox worker file to work through them and to return back an object.</p> <p>So my code previously worked when I didn't have a worker running the issue has only cropped up when I have moved to using worker file (for reasons I can't go into I need to use a worker!)</p> <p>So previously I would get all the meta tags using </p> <pre><code>var metas = document.getElementsByTagName("meta"); </code></pre> <p>then I could loop through the metas object by using</p> <pre><code>for (var index in metas){ var currentMeta = metas[index]; //(and so on, this code worked perfectly) </code></pre> <p>The problem occurs when I move to the external worker file scenario. What happens is I pull the meta tags out as normal, and then I use JSON.stringify to something that I can push to the worker.</p> <p>After all that intro blab, here is the root of my problem: Take for example that I land on a page with the following code within the html</p> <pre><code>&lt;meta content="width=1024" name="viewport"&gt; &lt;meta charset="UTF-8"&gt; &lt;meta content="Mozilla Hacks – the Web developer blog" name="title"&gt; </code></pre> <p>If I run the following code I get an array </p> <pre><code>var metas = document.getElementsByTagName("meta"); </code></pre> <p>returns an array 3 elements</p> <pre><code>[meta, meta, meta] </code></pre> <p>If I stringify it using:</p> <pre><code>var jsonMetas = JSON.stringify(metas); </code></pre> <p>I would expect to jsonMetas to hold something like:</p> <pre><code>{"0":{"content":"width=1024","name":"viewport"},"1":{"charset":"UTF-8"},"2":{"content":"Mozilla Hacks - the web developer blog","name":"title"} } </code></pre> <p>However when I look at the jsonMetas object I see this returned:</p> <pre><code>{"0":{"constructor":{}},"1":{"constructor":{}},"2":{"constructor":{}}} </code></pre> <p>Huh?????</p> <p>I'm not that good at JavaScript, so could you please explaining (in very small words :) ) what is going on?</p> <p>Why does the stringify call return the unusually structured object? What am I doing wrong?</p> <p>Thanks in advance for your answers.</p>
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