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Suppress/ print without b' prefix for bytes in Python 3
Just posting this so I can search for it later, as it always seems to stump me:
4 Answers
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Python: Making a beep noise
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edited Oct 16 '17 at 9:16
Oddthinking
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Can I set a TTL for @Cacheable
...ter a time by setting a TTL?
Right now from what I can see I need to clear it out myself by using the @CacheEvict , and by using that together with @Scheduled I can make a TTL implementation myself but it seems a bit much for such a simple task?
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NSUserDefaults removeObjectForKey vs. setObject:nil
...CFData being stored. Possibly an NSNull object reference, but I am not positive.
To completely remove a value for a key use UserDefaults.standard.removeObject(forKey: "YourDefault")
I tested with the following code:
UserDefaults.standard.set(["a", "b", "c"], forKey: "MyDefaults")
print("Test A: ...
How to expire session due to inactivity in Django?
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Here's an idea... Expire the session on browser close with the SESSION_EXPIRE_AT_BROWSER_CLOSE setting. Then set a timestamp in the session on every request like so.
request.session['last_activity'] = datetime.now()
and add a middleware to detect if the session is expired. som...
How do I tell Spring Boot which main class to use for the executable jar?
My project has more than one class with a main method. How do I tell the Spring Boot Maven plugin which of the classes it should use as the main class?
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postgresql return 0 if returned value is null
...sce
COALESCE(value [, ...])
The COALESCE function returns the first of its arguments that is not null.
Null is returned only if all arguments are null. It is often
used to substitute a default value for null values when data is
retrieved for display.
Edit
Here's an example of COALESCE with...
JavaScript validation for empty input field
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<input name="question"/> I want to call IsEmpty function when submit clicking submit button.
13 Answers
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Display a float with two decimal places in Python
I have a function taking float arguments (generally integers or decimals with one significant digit), and I need to output the values in a string with two decimal places (5 -> 5.00, 5.5 -> 5.50, etc). How can I do this in Python?
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Using multiple let-as within a if-statement in Swift
...m I have to cast them and test for the right type. This is what I came up with:
3 Answers
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