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What does the double colon (::) mean in CSS?
...
It means pseudo element selector. It means the element to the right doesn't exist in the normal DOM, but can be selected.
A pseudo-element is made of two colons (::) followed by the name of the pseudo-element.
Source
It was originally only a ...
how do I use UIScrollView in Interface Builder?
...tion to configure the UIScrollView's contentSize from Interface Builder:
Select the UIScrollView in the Storyboard scene
Go to the Identity inspector, create a new User Defined Runtime Attribute (click the + button)
Change the attribute Key Path to contentSize
Change the attribute Type to Size
Now...
How can I make a horizontal ListView in Android? [duplicate]
...d of "HorizontalListView", the "i" is too much) to update child-views when selected.
UPDATE: My code that I posted here was wrong I suppose, as I ran into trouble with selection (i think it has to do with view recycling), I have to go back to the drawing board...
UPDATE 2: Ok Problem solved, I sim...
How to set value of input text using jQuery
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Your selector is retrieving the text box's surrounding <div class='textBoxEmployeeNumber'> instead of the input inside it.
// Access the input inside the div with this selector:
$(function () {
$('.textBoxEmployeeNumber i...
Java's Virtual Machine and CLR
... a fixed collection of value types (byte, short, int, long, float, double, char, boolean) and only allows users to define new reference-types (classes).
The CLR provides support for declaring and manipulating pointers. This is especially interesting because both the JVM and the CLR employ strict gen...
How to connect to LocalDB in Visual Studio Server Explorer?
...11.0
Copy the Instance pipe name that starts with np:\...
In Visual Studio select TOOLS > Connect to Database...
For Server Name enter (localdb)\v11.0. If it didn't work, use the Instance pipe name that you copied earlier. You can also use this to connect with SQL Management Studio.
Select the da...
How to change the name of the active scheme in Xcode?
...t Scheme" from the "Product" menu.
Click on the "Manage Schemes…" button
Select the scheme whose name you wish to change
Press the "Return" key
It will select the name of the scheme and allow you to edit it.
share
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nuget 'packages' element is not declared warning
...r problem permanently. If you go to the path of adding XSD (From Xml menu, select "Create schema"), you will end up having problems with the package manager as it will clean up your packages.config file when you add a new package.
The best solution is just ignore by closing the file when you don't ...
Perform commands over ssh with Python
...ease share your knowledge
#!/usr/bin/python
import os
import sys
import select
import paramiko
import time
class Commands:
def __init__(self, retry_time=0):
self.retry_time = retry_time
pass
def run_cmd(self, host_ip, cmd_list):
i = 0
while True:
...
How to pull a random record using Django's ORM?
...on't know about other databases).
order_by('?')[:N] will be translated to SELECT ... FROM ... WHERE ... ORDER BY RAND() LIMIT N query.
It means that for every row in table the RAND() function will be executed, then the whole table will be sorted according to value of this function and then first N...