大约有 21,000 项符合查询结果（耗时：0.0391秒） [XML]
Counting the number of option tags in a select tag in jQuery
...
The W3C solution:
var len = document.getElementById("input1").length;
share
|
improve this answer
|
follow
|
...
Hide all but $(this) via :not in jQuery selector
...
$(this).siblings().hide();
Traversing/Siblings
share
|
improve this answer
|
follow
|
...
Get selected value in dropdown list using JavaScript
...
If you have a select element that looks like this:
<select id="ddlViewBy">
<option value="1">test1</option>
<option value="2" selected="selected">test2</option>
<option value="3">test3</option>
</select>
Running this code:
var e =...
git: fatal: Could not read from remote repository
... @user61629: I know I'm late to the party, but you should consider using private/public key pairs instead of passwords.
– code_dredd
Apr 22 '16 at 22:06
...
Hidden Features of MySQL
...s to require a fair bit of planning and re-organizing the SQL queries to guide MySQL to execute them faster.
Administration:
max_connections is the number of concurrent connections. The default value is 100 connections (151 since 5.0) - very small.
Note:
connections take memory and your OS migh...
What does [object Object] mean?
...aling with jQuery objects, you might want to do
alert(whichIsVisible()[0].id);
to print the element's ID.
As mentioned in the comments, you should use the tools included in browsers like Firefox or Chrome to introspect objects by doing console.log(whichIsVisible()) instead of alert.
Sidenote: I...
Is it possible to set the equivalent of a src attribute of an img tag in CSS?
...
without proper browser support I don't see this as a valid answer, sorry.
– emachine
Aug 30 '13 at 17:37
|
show 21 more c...
How to kill a process running on particular port in Linux?
...
This fuser 8080/tcp will print you PID of process bound on that port.
And this fuser -k 8080/tcp will kill that process.
Works on Linux only. More universal is use of lsof -i4 (or 6 for IPv6).
...
How to create EditText with rounded corners? [closed]
...gt;
<!-- res/drawable/rounded_edittext.xml -->
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle"
android:padding="10dp">
<solid android:color="#FFFFFF" />
<corners
android:bottomRightRadius="15dp"
andro...
LINQ's Distinct() on a particular property
...element;
}
}
}
So to find the distinct values using just the Id property, you could use:
var query = people.DistinctBy(p => p.Id);
And to use multiple properties, you can use anonymous types, which implement equality appropriately:
var query = people.DistinctBy(p => new { p.I...