blocks|key|790275|text|您确定需要编写自己的加载器吗？如果使用之前测试过的实现：Lazy+Load|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|790276|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/rgrove/lazyload/^0|S|9|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Are you sure you need to write your own loader? What about using a previously tested implementation: <a href="https://github.com/rgrove/lazyload/" rel="nofollow">Lazy Load</a>

blocks|key|4573753|text|您是否正在尝试按需加载Google地图？要动态加载应用编程接口，请传递一个回调参数，如Example上所示|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4573754|entityMap|0|LINK|mutability|MUTABLE|url|http://gmaps-samples-v3.googlecode.com/svn/trunk/callback/callback_delayed.html^0|17|7|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Are you trying to load Google Maps on demand? To load the API dynamically, pass a callback parameter, as shown on the <a href="http://gmaps-samples-v3.googlecode.com/svn/trunk/callback/callback_delayed.html" rel="nofollow">Example</a>

blocks|key|3106372|text|我认为您需要重命名您的LazyLoad脚本，因为it+already+exists.+:)说到这里，它已经存在了，那么为什么还要重新编写它呢？|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3106373|如果你只是想看看它是如何做到的，source+code是可用的。|3106374|entityMap|0|LINK|mutability|MUTABLE|url|http://wonko.com/post/painless_javascript_lazy_loading_with_lazyload|1|http://cdn.wonko.com/lazyload/1.0.4/lazyload.js^0|O|I|0|0|G|B|1|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@$A|Q|B|R|1|S]]|C|$]]|$1|D|3|E|5|6|7|T|8|@]|9|@$A|U|B|V|1|W]]|C|$]]|$1|F|3|-4|5|6|7|X|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]|N|$5|I|J|K|C|$L|O]]]]

I think you'll need to rename your LazyLoad script, because <a href="http://wonko.com/post/painless_javascript_lazy_loading_with_lazyload" rel="nofollow">it already exists.</a> :) Speaking of which, it already exists, so why write it again?

If you just want to see how it's done, the <a href="http://cdn.wonko.com/lazyload/1.0.4/lazyload.js" rel="nofollow">source code</a> is available.

blocks|key|790347|text|是啊，为什么要重新发明轮子呢。您似乎正在使用jQuery。试试这个插件：Load+image+only+when+it+is+viewable?|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|790348|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/4983900/load-image-only-when-it-is-viewable/4983912#4983912^0|10|10|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Yeah, why reinvent the wheel. You seem to be using jQuery.
try this plugin:
<a href="https://stackoverflow.com/questions/4983900/load-image-only-when-it-is-viewable/4983912#4983912">Load image only when it is viewable?</a>

blocks|key|790410|text|找到一个解决方案:检查网址：‘http://maps.google.com/maps/api/js?sensor=true’，你会发现main.js是由它导入的。一个简单的sensor=true的getScript将不会给出整个谷歌对象，所以下一次导入也是必需的。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|790411|++var+t=setTimeout(function(){
++++jQuery.getScript('http://maps.google.com/maps/api/js?sensor=true');
++++jQuery.getScript('http://maps.gstatic.com/intl/en_us/mapfiles/api-3/10/20/main.js');
++},1000);|code-block|syntax|javascript|790412|PS:类似问题线程Lazy+loading+google+map+api|790413|entityMap|0|LINK|mutability|MUTABLE|url|http://maps.google.com/maps/api/js?sensor=true|1|https://stackoverflow.com/questions/14476690/lazy-loading-google-map-api^0|F|1A|0|0|0|9|R|1|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|F|7|Y|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|Z|8|@]|9|@$A|10|B|11|1|12]]|C|$]]|$1|K|3|-4|5|6|7|13|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]|S|$5|N|O|P|C|$Q|T]]]]

Found a solution:
Check the URL:'<a href="http://maps.google.com/maps/api/js?sensor=true" rel="nofollow noreferrer">http://maps.google.com/maps/api/js?sensor=true</a>'
You would find main.js is being imported by it . A simple getScript for sensor=true will not give whole google object so next import also required.

<pre><code> var t=setTimeout(function(){
 jQuery.getScript('http://maps.google.com/maps/api/js?sensor=true');
 jQuery.getScript('http://maps.gstatic.com/intl/en_us/mapfiles/api-3/10/20/main.js');
 },1000);
</code></pre>

PS: Similar issue thread <a href="https://stackoverflow.com/questions/14476690/lazy-loading-google-map-api">Lazy loading google map api</a>

Here's the deal. I've tried a number of methods of lazy loading the Google Maps API JavaScript, and every time in do it, with any Lazy Loader I use, FireFox "blocks." It lazy loads just fine in Chrome.

What I mean by "blocks" is that the elements in the HTML don't display, and instead, the browsers spin trying to make a connection to download the Maps JavaScript.

The code follows. Put it in an HTML file and open it in your browser:

<pre><code>&lt;html&gt;
&lt;head&gt;
 &lt;script type="text/javascript" src="http://github.com/rgrove/lazyload/raw/master/lazyload.js"&gt;&lt;/script&gt;
&lt;/head&gt;
 &lt;body&gt;
 Open your console. Wait for "entering debugger..." message.&lt;br /&gt;
 You can't see me in FireFox, can you?
 &lt;script type="text/javascript"&gt;
 // If I remove the `sensor` from the query string key and value, 
 // Google rejects the request and alert() does occur
 LazyLoad.js("http://maps.google.com/maps/api/js?sensor=false", function() {
 console.log("entering debugger...");
 });
 &lt;/script&gt;
 &lt;/body&gt;
&lt;/html&gt;
</code></pre>

In Chrome, I see the "Open your console..." contents of the page, and the JavaScript is requested and downloaded, async, in the background.

In FireFox, the "Open your console..." contents never appear, and it hangs (status bar says "Read" from a Google DNS), never finishing or displaying the page contents.

Lazyloading Google API not working

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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事情是这样的。我已经尝试了许多延迟加载Google Maps API JavaScript的方法，并且每次使用时，我都使用FireFox“块”。它在Chrome中可以很好地延迟加载。我所说的“块”是指超文本标记语言中的元素不会显示，而是浏览器试图建立连接以下载地图JavaScript。代码如下。将其放入HTML文件中并在浏览器中打开：<html><head> <script type="te

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