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Length of an integer in Python
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This isn't just slow, but consumes way more memory and can cause trouble in large numbers. use Math.log10 instead.
– Peyman
Mar 30 at 8:36
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JQuery find first parent element with specific class prefix
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NGINX to reverse proxy websockets AND enable SSL (wss://)?
...e really to set it to a very large number to avoid it? Isn't there now any more elegant solution?
– Mohammed Noureldin
Jan 4 '18 at 23:48
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Python: Convert timedelta to int in a dataframe
...olumn. Is it possible to use 'datetime.days' or do I need to do something more manual?
4 Answers
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How do I find out which keystore was used to sign an app?
... the -jarfile argument was introduced in Java 7; see the documentation for more details.)
Signature of a keystore
keytool -list -v -keystore release.jks
The output will reveal the aliases (entries) in the keystore file release.jks, with the certificate fingerprints (MD5, SHA1 and SHA256).
If th...
What is difference between functional and imperative programming languages?
...t side effects.
Easier testing and debugging. Because pure functions can more easily be tested in isolation, you can write test code that calls the pure function with typical values, valid edge cases, and invalid edge cases.
For OOP People or
Imperative languages:
Object-oriented languages are...
What uses are there for “placement new”?
...e-allocate memory each time you need a new instance. Instead, it might be more efficient to perform a single allocation for a chunk of memory that can hold multiple objects, even though you don't want to use all of it at once.
DevX gives a good example:
Standard C++ also supports placement
new ope...
Javascript - How to extract filename from a file input control
..., filename.lastIndexOf('.')); Because his way will fail with extensions of more characters than 3, thus: .html, .jpeg etc.
– Yeti
May 10 '12 at 16:02
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MySQL INSERT INTO table VALUES.. vs INSERT INTO table SET
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