blocks|key|2137656|text|您可以使用最近的静态父元素作为事件持有者。但是，您也可以使用body|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2137657|$('body').on('keydown',+'.commenttext',+function(e)+{
++++if+((e.which+==+13)+&&+!e.shiftKey)+{
++++++++comment($(this));
++++++++return+false;
++++}
});|code-block|syntax|javascript|2137658|entityMap^0|U|4|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

You can use nearest static parent element as event holder. However, you can also use <code>body</code>:

<pre><code>$('body').on('keydown', '.commenttext', function(e) {
 if ((e.which == 13) &amp;&amp; !e.shiftKey) {
 comment($(this));
 return false;
 }
});
</code></pre>

blocks|key|2321113|text|$('parentElement').on('keydown',+'.commenttext',+function(e)+{
++++if+((e.which+==+13)+&&+!e.shiftKey)+{
++++++++comment($(this));
++++++++return+false;
++++}
});|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|2321114|将.commenttext的父元素替换为"parentElement“。|unstyled|2321115|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>$('parentElement').on('keydown', '.commenttext', function(e) {
 if ((e.which == 13) &amp;&amp; !e.shiftKey) {
 comment($(this));
 return false;
 }
});
</code></pre>

Substitute "parentElement" for the parent element of .commenttext.

blocks|key|2137713|text|live表单实际上是一个使用document的委托，因此新格式为：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2137714|$(document).on('keydown',+'.commenttext',+function...);|code-block|syntax|javascript|2137715|通常，最好使用不随内容变化的选择器(在本例中为.commenttext)的更一致的父函数，但document应该适用于大多数情况。|2137716|entityMap^0|0|4|E|8|0|0|N|C|1A|8|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]|$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|U|8|@$9|V|A|W|B|C]|$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|M|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|N|$]]

The <code>live</code> form is actually a delegate using <code>document</code>, so the new format would be:

<pre><code>$(document).on('keydown', '.commenttext', function...);
</code></pre>

Typically it's better to use a nearer consistent parent of the selector (in this case <code>.commenttext</code>) that isn't changing with the contents, but <code>document</code> should work for most cases.

blocks|key|499926|text|您需要将回调附加到.commenttext的静态父级。静态意味着页面加载时存在。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|499927|示例：|499928|$('body').on('keydown',+'.commenttext',+function(e)+{
++++if+((e.which+==+13)+&&+!e.shiftKey)+{
++++++++comment($(this));
++++++++return+false;
++++}
});|code-block|syntax|javascript|499929|或者：|499930|$('{staticParentElement}').on('keydown',+'.commenttext',+function(e)+{
++++if+((e.which+==+13)+&&+!e.shiftKey)+{
++++++++comment($(this));
++++++++return+false;
++++}
});|499931|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

You need to attach the callback to a static parent of .commenttext static means exist on page load.

Example:

<pre><code>$('body').on('keydown', '.commenttext', function(e) {
 if ((e.which == 13) &amp;&amp; !e.shiftKey) {
 comment($(this));
 return false;
 }
});
</code></pre>

Or:

<pre><code>$('{staticParentElement}').on('keydown', '.commenttext', function(e) {
 if ((e.which == 13) &amp;&amp; !e.shiftKey) {
 comment($(this));
 return false;
 }
});
</code></pre>

I have the following code and would like to change from using the live() method to using the on() method:

<pre><code>$('.commenttext').live('keydown', function(e) {
 if ((e.which == 13) &amp;&amp; !e.shiftKey) {
 comment($(this));
 return false;
 }
});
</code></pre>

It is about commenting on a post - also one that was created created on the fly using the on() method. If I simply change only the word "live" to "on" like this

<pre><code>$('.commenttext').on('keydown', function(e) {
 if ((e.which == 13) &amp;&amp; !e.shiftKey) {
 comment($(this));
 return false;
 }
});
</code></pre>

then it only works with items that weren't created on the fly.

UPDATE 1

I changed the code to the following:

<pre><code>$('.commentsDiv').on('keydown', '.commenttext', function(e) {
 if ((e.which == 13) &amp;&amp; !e.shiftKey) {
 comment($(this));
 return false;
 }
});
</code></pre>

with commentsDiv being the parent element of commenttext, but still it doesn't work with elements that were created on the fly. For example, the following function creates the commentsDiv on the fly:

<pre><code>$('#postDiv').on('keydown', '#posttext', function(e) {
 if (e.which==13 &amp;&amp; !e.shiftKey) {
 post($(this));
 return false;
 }
});
</code></pre>

Does anyone know how to adjust properly?

Thanks :)

jQuery - change from live() to on()

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。

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我有以下代码，希望从使用live()方法改为使用on()方法：$('.commenttext').live('keydown', function(e) {    if ((e.which == 13) && !e.shiftKey) {        comment($(this));        return f...

问jQuery -从live()更改为on()
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问jQuery -从live()更改为on()EN