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POProblem accessing a function defined in Coffeescript
 

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  1. POProblem accessing a function defined in Coffeescript
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    <p>I'm converting some javascript to coffeescript, and I'm having trouble accessing a function I've defined. Here's the original working javascript (I'm also using jQuery):</p> <pre><code>function check_quiz_state(){ var div = $('#quiz-waiting'); var timestamp = new Date().getTime(); $.ajax({ url: window.location.pathname + "?time=" + timestamp, success: function(state) { if (state == 'created' || state == 'completed') { setTimeout("check_quiz_state()", 3000); } else if (state == 'built') { div.html("&lt;a href='" + window.location.pathname + "/pages/1'&gt;Click to begin!&lt;/a&gt;"); } else if (state == 'graded') { window.location.pathname = window.location.pathname + "/review" } } }); }; </code></pre> <p>After some cleanup and liberal use of the delete key, here's my coffeescript:</p> <pre><code>check_quiz_state = -&gt; success = (state) -&gt; switch state when 'created', 'completed' then setTimeout "check_quiz_state()", 3000 when 'built' then $('#quiz-waiting').html "&lt;a href='#{window.location.pathname}/pages/1'&gt;Click to begin!&lt;/a&gt;" when 'graded' then window.location.pathname = window.location.pathname + "/review" $.ajax {url: "#{window.location.pathname}?time=#{Date.now()}"}, success </code></pre> <p>The problem is with using setTimeout to make the function repeat - this works fine in the original javascript, but with the coffeescript it doesn't. I think it's unable to find the check_quiz_state function - if I use the javascript console in Chrome I can trigger the function just fine with my original javascript, but with the coffeescript version I get an error: "ReferenceError: check_quiz_state is not defined".</p> <p>What should I be doing differently?</p> <p>Edit - Here's what coffeescript is outputting. Sorry, slipped my mind:</p> <pre><code>(function() { var check_quiz_state; $(function() { // Other application code I omitted above, which is calling check_quiz_state() successfully. }); check_quiz_state = function() { var success; success = function(state) { switch (state) { case 'created': case 'completed': return setTimeout("check_quiz_state()", 3000); case 'built': return $('#quiz-waiting').html("&lt;a href='" + window.location.pathname + "/pages/1'&gt;Click to begin!&lt;/a&gt;"); case 'graded': return window.location.pathname = window.location.pathname + "/review"; } }; return $.ajax({ url: "" + window.location.pathname + "?time=" + (Date.now()) }, success); }; }).call(this); </code></pre> <p>I guess the function it's wrapped in is why I can't call it from the Chrome developer console, but I don't get why the timeout is failing. I'm not that great with javascript, though.</p>
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    1. USPreciousBodilyFluids
    1. USPreciousBodilyFluids
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    1. COMmm, coffeescript. Interesting.
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      1. USJared Farrish
    2. COCan you post what coffeescript is outputting? That would help a lot.
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      1. USJared Farrish
    3. COYour also passing in a string to setTimeout rather then passing in the function which could change things quite a bit. try passing in `check_quiz_state` instead
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      1. USRaynos
 

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