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  1. PO
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    <blockquote> <p>I...have been under the impression that the code I've been writing has been running asynchronously.</p> </blockquote> <p>Yes, it does. Your <code>geocode</code> function <em>cannot</em> return the results of the call to the Google API, because the function returns before the Google call completes. See note below:</p> <pre><code>function geocode(geocoder) { //do geocoding here... var address = "3630 University Street, Montreal, QC, Canada"; geocoder.geocode({ 'address': address }, function (results, status) { if (status == google.maps.GeocoderStatus.OK) { // +---------- This doesn't return anything from your // v geocode function, it returns a value from the callback return results; } else { alert("Geocode was not successful for the following reason: " + status); } }); } </code></pre> <p>Instead, you must code your <code>geocode</code> function so that it accepts a callback which it will call when it has the results. E.g.:</p> <pre><code>// Added a callback arg ---v function geocode(geocoder, callback) { //do geocoding here... var address = "3630 University Street, Montreal, QC, Canada"; geocoder.geocode({ 'address': address }, function (results, status) { if (status == google.maps.GeocoderStatus.OK) { // v---------- Call the callback callback(results); } else { alert("Geocode was not successful for the following reason: " + status); callback(null); // &lt;--- Call the callback with a flag value // saying there was an error } }); } </code></pre> <p>Then, instead of using it like this:</p> <pre><code>var results = geocode(someArgHere); if (results) { doSomething(results); } else { doSomethingElse(); } </code></pre> <p>You call it like this:</p> <pre><code>geocode(someArgHere, function() { if (results) { doSomething(results); } else { doSomethingElse(); } }); </code></pre> <p>E.g., you go <em>fully</em> asynchronous.</p>
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    1. POJavaScript doesn't seem to wait for return values
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    1. UST.J. Crowder
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    1. COisn't that what the anonymous function (that takes two parameters results, status) is doing?
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      1. USGeorges Krinker
    2. CO@GeorgesKrinker: Yes, you could pass `callback` directly to Google if you don't need to transform the result before returning it to the calling code.
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