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Unit testing code with a file system dependency
...ing a bit more interesting going on with a file and you wanted to save the Base64 encoded contents of a byte[] to a file. You can use streams for this to test that your code does the right thing without having to check how it does it. One example might be something like this (in Java):
interface St...
Error installing mysql2: Failed to build gem native extension
...\world\app\models\city.rb to look like this
class City < ActiveRecord::Base
set_table_name "city"
end
Edit the file c:\Sites\world\config\database.yml to look like this
development:
adapter: mysql2
encoding: utf8
database: world
pool: 5
username: root
password: root
socket: /tmp/mysql.sock
...
How to check certificate name and alias in keystore files?
... = keyStore.getKey(alias, password.toCharArray());
String encodedKey = new Base64Encoder().encode(key.getEncoded());
System.out.println("key ? " + encodedKey);
@prateek Hope this is what you looking for!
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How do I prompt for Yes/No/Cancel input in a Linux shell script?
...prompt is the read command. The best way to illustrate its use is a simple demonstration:
while true; do
read -p "Do you wish to install this program?" yn
case $yn in
[Yy]* ) make install; break;;
[Nn]* ) exit;;
* ) echo "Please answer yes or no.";;
esac
done
A...
How to Batch Rename Files in a macOS Terminal?
... files frequently, consider installing a specialized tool such as the Perl-based rename utility.
On macOS you can install it using popular package manager Homebrew as follows:
brew install rename
Here's the equivalent of the command at the top using rename:
rename -n -e 's/_.*_/_/' *.png
Agai...
How can I use UUIDs in SQLAlchemy?
...I totally agree with you. Some of the other answers are cool for other databases, but for postgres this is the cleanest solution. (You can also set a default as uuid.uuid4).
– pacha
Apr 10 '18 at 16:38
...
back button callback in navigationController in iOS
...: true, completion: nil)
return false
}
}
You can look at my demo here.
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Copy a file in a sane, safe and efficient way
...
64
With C++17 the standard way to copy a file will be including the <filesystem> header and ...
What are the advantages of NumPy over regular Python lists?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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How to remove text from a string?
... only replace the first matching text. And your output will be "123data-"
DEMO
So if you want all matches of text to be replaced in string you have to use a regular expression with the g flag like that:
"data-123data-".replace(/data-/g,'');
And your output will be "123"
DEMO2
...