大约有 15,000 项符合查询结果（耗时：0.0238秒） [XML]
jQuery: Count number of list elements?
...ts:
var num = $("#mylist").find("li").length;
console.log(num);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul id="mylist">
<li>Element 1</li>
<li>Element 2</li>
<li>Element 3</li>
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What does [object Object] mean?
I am trying to alert a returned value from a function and I get this in the alert:
9 Answers
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JavaScript object: access variable property by name as string [duplicate]
If I have a javascript object that looks like below
3 Answers
3
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Limit number of characters allowed in form input text field
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Add the following to the header:
<script language="javascript" type="text/javascript">
function limitText(limitField, limitNum) {
if (limitField.value.length > limitNum) {
limitField.value = limitField.value.substring(0, limitNum);
}
}
&...
jQuery - Illegal invocation
... cache : false,
processData: false
}).done(function(response) {
alert(response);
});
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Pass a JavaScript function as parameter
...need to
// refreshCallback(id);
}
function refreshContactList() {
alert('Hello World');
}
addContact(1, refreshContactList);
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How can I get a Bootstrap column to span multiple rows?
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<div class="row">
<div class="col-4 alert alert-primary">
1
</div>
<div class="col-8">
<div class="row">
<div class="col-6 alert alert-primary">
2
</div>
<div class="col-6 alert alert-pr...
Is there a JavaScript / jQuery DOM change listener?
Essentially I want to have a script execute when the contents of a DIV change. Since the scripts are separate (content script in the Chrome extension & webpage script), I need a way simply observe changes in DOM state. I could set up polling but that seems sloppy.
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Detecting value change of input[type=text] in jQuery
...tener like this:
$("#myTextBox").on("change paste keyup", function() {
alert($(this).val());
});
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jQuery document.createElement equivalent?
I'm refactoring some old JavaScript code and there's a lot of DOM manipulation going on.
14 Answers
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