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What is the difference between == and Equals() for primitives in C#?
... accepts the same type.
If you write age.Equals(newAge), the compiler will select int.Equals(int) as the best overload and implicitly convert short to int. It will then return true, since this method simply compares the ints directly.
short also has a short.Equals(short) method, but int cannot be im...
What is sharding and why is it important?
... a DBMS for which the locality is quite restricted (say, a user only fires selects with a 'where username = $my_username') it makes sense to put all the usernames starting with A-M on one server and all from N-Z on the other. By this you get near linear scaling for some queries.
Long story short: S...
Detect Windows version in .net
...;
using (ManagementObjectSearcher searcher = new ManagementObjectSearcher("SELECT * FROM Win32_OperatingSystem"))
{
ManagementObjectCollection information = searcher.Get();
if (information != null)
{
foreach (ManagementObject obj in information)
{
r = obj["Cap...
How do you get the list of targets in a makefile?
...al with false positives from other output sections.
if ($$1 !~ "^[#.]")
Selectively ignores blocks:
# ... ignores non-targets, whose blocks start with # Not a target:
. ... ignores special targets
All other blocks should each start with a line containing only the name of an explicitly defined...
Getting DOM elements by classname
...
Update: Xpath version of *[@class~='my-class'] css selector
So after my comment below in response to hakre's comment, I got curious and looked into the code behind Zend_Dom_Query. It looks like the above selector is compiled to the following xpath (untested):
[contains(concat...
How do I merge my local uncommitted changes into another Git branch?
...check the various stash made in different branch
git stash apply x # to select the right one
As commented by benjohn (see git stash man page):
To also stash currently untracked (newly added) files, add the argument -u, so:
git stash -u
...
Factory Pattern. When to use factory methods?
...or further application development, then factory method is one of the best selections for creation pattern. Reason behind; We know that when to create an object of required functionality(s) but type of object will remain undecided or it will be decided ob dynamic parameters being passed.
Now the po...
How to write Unicode characters to the console?
...rticular character. Click on the Windows Tool-bar Menu (icon like C:.) and select Properties -> Font. Try some other fonts to see if they display your character properly:
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Programmatically fire button click event?
...[btn sendActionsForControlEvents:UIControlEventTouchUpInside];
[btn performSelector:@selector(setHighlighted:) withObject:NO afterDelay:0.25];
This will programmatically hit the button and highlight it for a seemingly normal amount of time. Richie's suggestion didn't work as the button was only h...
How do I connect to a specific Wi-Fi network in Android programmatically?
...ows a list of Wi-Fi networks available and connect to whichever network is selected by the user.
10 Answers
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