如何在Javascript中访问Google Maps API的版本号？

Question

Does the Google Maps Javascript API have a property/method that returns its exact version number?

I need this info for debugging purposes.

Answer 1

要获得Google Maps API的确切版本，可以查看google.maps.version

Answer 2

When you include Google Maps API you can choose version of it. Example:

<script type="text/javascript" src="http://www.google.com/jsapi?key=LONG_KEY_HERE"></script>
<script type="text/javascript">
/*<![CDATA[*/
    google.load('maps', '2');
/*]]>*/
</script> 

Here we want to use version 2 of Google Maps API.

Answer 3

I suppose the G_API_VERSION could do :

This constant specifies the version of the API currently being served to your page.

I've just tested on two sites, and it contained things like "193c" and "140g" .

Answer 4

In the Maps API v2, G_API_VERSION is what you want. For example, 193c means its loading v2.193c, 140g means 2.140g.

Changelog is here: http://code.google.com/p/gmaps-api-issues/wiki/JavascriptMapsAPIChangelog