blocks|key|1328948|text|只需测试ui对象，例如|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1328949|<script+src="jquery.js"></script>
<script+src="jquery-ui.js"></script>
<script>
++$(function(){
++++//+did+the+UI+load?
++++console.log(jQuery.ui);
++});
</script>|code-block|syntax|javascript|1328950|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

<p>Just test for the ui object, e.g.</p>

<pre><code>&lt;script src="jquery.js"&gt;&lt;/script&gt;
&lt;script src="jquery-ui.js"&gt;&lt;/script&gt;
&lt;script&gt;
  $(function(){
    // did the UI load?
    console.log(jQuery.ui);
  });
&lt;/script&gt;
</code></pre>


blocks|key|1113882|text|if+(jQuery.ui)+{
++//+UI+loaded
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1113883|或|unstyled|1113884|if+(typeof+jQuery.ui+!=+'undefined')+{
++//+UI+loaded
}|1113885|应该能起到作用|1113886|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|N|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$B|C]]|$1|I|3|J|5|F|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|F|7|Q|8|@]|9|@]|A|$]]]|L|$]]

<pre><code>if (jQuery.ui) {
  // UI loaded
}
</code></pre>

<p>OR </p>

<pre><code>if (typeof jQuery.ui != 'undefined') {
  // UI loaded
}
</code></pre>

<p>Should do the trick</p>


blocks|key|1329027|text|我知道这是一个古老的问题，但这里有一个快速的小脚本，你可以用它来包装所有没有关联事件的jQuery+UI，以确保它们只在jQuery+UI加载后执行：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1329028|function+checkJqueryUI()+{
++++if+(typeof+jQuery.ui+!=+'undefined')+{
++++++++do_jqueryui();
++++}
++++else+{
++++++++window.setTimeout(+checkJqueryUI,+50+);
++++}
}
//+Put+all+your+jQuery+UI+stuff+in+this+function
function+do_jqueryui()+{
++++//+Example:
++++$(+"#yourId"+).dialog();
}
checkJqueryUI();|code-block|syntax|javascript|1329029|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

<p>I know this is an old question, but here is a quick little script you can use to wrap all your jQuery UI things that don't have an associated event to make sure they get executed only after jQuery UI is loaded:</p>

<pre><code>function checkJqueryUI() {
    if (typeof jQuery.ui != 'undefined') {
        do_jqueryui();
    }
    else {
        window.setTimeout( checkJqueryUI, 50 );
    }
}
// Put all your jQuery UI stuff in this function
function do_jqueryui() {
    // Example:
    $( "#yourId" ).dialog();
}
checkJqueryUI();
</code></pre>


blocks|key|1113971|text|您可以通过多种方式检查是否加载了jQuery+UI，例如：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1113972|if+(typeof+jQuery.ui+==+'undefined')+{
+++//+jQuery+UI+IS+NOT+loaded,+do+stuff+here.
}|code-block|syntax|javascript|1113973|或|1113974|if+(typeof+jQuery.ui+!=+'function')+{
++++//+jQuery+UI+IS+NOT+loaded,+do+stuff+here.
}|1113975|1113976|if+(jQuery.ui)+{
++++//+This+will+throw+an+error+in+STRICT+MODE+if+jQuery+UI+is+not+loaded,+so+don't+use+if+using+strict+mode
++++alert("jquery+UI+is+loaded");
}+else+{
++++alert("Not+loaded");
}|1113977|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Q|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|R|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|S|8|@]|9|@]|A|$E|F]]|$1|K|3|H|5|6|7|T|8|@]|9|@]|A|$]]|$1|L|3|M|5|D|7|U|8|@]|9|@]|A|$E|F]]|$1|N|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|O|$]]

<p>You can check if jQuery UI is loaded or not by many ways such as:<br></p>

<pre><code>if (typeof jQuery.ui == 'undefined') {
   // jQuery UI IS NOT loaded, do stuff here.
}
</code></pre>

<p>OR</p>

<pre><code>if (typeof jQuery.ui != 'function') {
    // jQuery UI IS NOT loaded, do stuff here.
}
</code></pre>

<p>OR</p>

<pre><code>if (jQuery.ui) {
    // This will throw an error in STRICT MODE if jQuery UI is not loaded, so don't use if using strict mode
    alert("jquery UI is loaded");
} else {
    alert("Not loaded");
}
</code></pre>

<p><br></p>


<p>I'm trying to debug a website, and I think that jQueryUI may not have loaded properly. How can I test if jQueryUI has loaded?</p>


Testing if jQueryUI has loaded

jQuery

我正在尝试调试一个网站，我认为jQueryUI可能没有正确加载。如何测试jQueryUI是否已加载？

问测试jQueryUI是否已加载
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