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When should I use Lazy?
...ssure on the GC in high load scenarios. Therefore, making them a Singleton from within the class itself is fine. Most (if not all) modern DI containers can handle it either way you choose.
– Lee Grissom
Jun 29 '17 at 20:17
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How do I write a “tab” in Python?
...f some of the more useful escape sequences and a description of the output from them.
Escape Sequence Meaning
\t Tab
\\ Inserts a back slash (\)
\' Inserts a single quote (')
\" Inserts a double quote (")
\n ...
How to store decimal values in SQL Server?
... => 9
20-28 => 13
29-38 => 17
It can store from 0 up to 9 999 999.99 (7 digit infront + 2 digit behind decimal point = total 9 digit), which is big enough for most of the values.
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How to check for a valid Base64 encoded string
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Use Convert.TryFromBase64String from C# 7.2
public static bool IsBase64String(string base64)
{
Span<byte> buffer = new Span<byte>(new byte[base64.Length]);
return Convert.TryFromBase64String(base64, buffer , out int bytes...
Crontab - Run in directory
... a job to run daily in the root crontab. But I would like it to execute it from a particular directory so it can find all the files it needs, since the application has a bunch of relative paths.
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Python, Matplotlib, subplot: How to set the axis range?
... property to False. Here is a modified version of the FFT subplot snippet from your code:
fft_axes = pylab.subplot(h,w,2)
pylab.title("FFT")
fft = scipy.fft(rawsignal)
pylab.ylim([0,1000])
fft_axes.set_autoscaley_on(False)
pylab.plot(abs(fft))
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Why don't Java Generics support primitive types?
...esent any
user defined object.
Since all primitives doesn't inherit from "Object" so we can't use it
as a generic type.
FYI : Project Valhalla is trying to address above issue.
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im...
How does Rails keep track of which migrations have run for a database?
.... If you roll back that migration, Rails will delete the corresponding row from schema_migrations.
For example, running a migration file named 20120620193144_create_users.rb will insert a new row with a version of 20120620193144 into the schema_migrations table.
You are free at any point to introd...
Auto reloading python Flask app upon code changes
...eload the flask app when a code change happens.
app.run(debug=True)
Or, from the shell:
$ export FLASK_DEBUG=1
$ flask run
http://flask.pocoo.org/docs/quickstart/#debug-mode
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IntelliJ IDEA hint parameters of method
I'm just swapping from eclipse to IntelliJ, and I can't find this particular feature.
5 Answers
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