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Method overloading in Objective-C?
... @RaheelSadiq It isn't overloading because the method names (In ObjC: 'selectors') are different. Being different, neither one is considered 'overloaded'. If writeToFile:from: were defined twice, with only the parameter types being different, then that would be overloading. As stated though, t...
Remove unwanted parts from strings in a column
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A very simple method would be to use the extract method to select all the digits. Simply supply it the regular expression '\d+' which extracts any number of digits.
df['result'] = df.result.str.extract(r'(\d+)', expand=True).astype(int)
df
time result
1 09:00 52
2 10:00...
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock'
...d_safe --skip-grant-tables &
Log into MySQL using root
mysql -uroot
Select the MySQL database to use
use mysql;
Reset the password
-- MySQL version < 5.7
update user set password=PASSWORD("mynewpassword") where User='root';
-- MySQL 5.7, mysql.user table "password" field -> "authent...
c# open file with default application and parameters
... + Click on project
Add New Item
Under Visual C# Items -> General
Select Settings File
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Input size vs width
...bly preferable to the inline style attribute.
You still need size for <select multiple> to get the height to line up with the options properly. But I'd not use it on an <input>.
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OSGi: What are the differences between Apache Felix and Apache Karaf?
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One nice feature of any OSGi container is that you can select just the bundles you need and deploy them into your container. So my advice would be to first architect your application, and then pick what you need. The advice to "just install the whole platform because it is featur...
What is the difference between varchar and nvarchar?
... NLS_CHARACTERSET option is set. You may be able to find it with the query SELECT value$ FROM sys.props$ WHERE name = 'NLS_CHARACTERSET'.
If your NLS_CHARACTERSET is a Unicode encoding like UTF8, great. Using VARCHAR and NVARCHAR are pretty much identical. Stop reading now, just go for it. Otherwis...
Conceptually, how does replay work in a game?
...ame visual result. If you need randomness, create a set of random numbers, select a seed value when the game is played, and save that seed value in the replay.
In general having randomness in a game is a bad idea. Even for things like multiplayer, you can't have half your players able to see aroun...
PowerShell says “execution of scripts is disabled on this system.”
...ed cannot be the first line in your script. If it is, highlight it and run selected only INITIALLY before running the rest of your script.
– ozzy432836
Jun 21 '17 at 13:36
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Commenting multiple lines in DOS batch file
...ing GOTO, you can use Notepad++ to do this easily following these steps:
Select the block of lines
hit Ctrl-Q
Repeat steps to uncomment
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