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Computed read-only property vs function in Swift
...operties for just that: properties; meaning simple values that you can get and/or set. I use functions (or methods) when actual work is being done. Maybe something has to be computed or read from disk or from a database: In this case I use a function, even when only a simple value is returned. That ...
When to use IComparable Vs. IComparer
...rer<T> is useful for sorting collections as the IComparer<T> stands outside of the comparison.
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Difference between onCreate() and onStart()? [duplicate]
I was wondering - what is the difference between onCreate() and onStart() methods?
2 Answers
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overlay two images in android to set an imageview
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You can skip the complex Canvas manipulation and do this entirely with Drawables, using LayerDrawable. You have one of two choices: You can either define it in XML then simply set the image, or you can configure a LayerDrawable dynamically in code.
Solution #1 (via XM...
Long Press in JavaScript?
...at, you don't just want mouse move though - holding you finger dead steady and not moving 1px is quite hard! You need to apply a threshold (if mouse hasn't moved 10px) etc. Gets complicated quite quickly!
– Ian
Feb 18 '15 at 12:44
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Does PostgreSQL support “accent insensitive” collations?
...r now
This approach is more efficient as other solutions floating around, and safer.
Create an IMMUTABLE SQL wrapper function executing the two-parameter form with hard-wired schema-qualified function and dictionary.
Since nesting a non-immutable function would disable function inlining, base it o...
Permanently add a directory to PYTHONPATH?
... using (.profile or whatever, depending on your favorite shell) with a command which, again, depends on the shell in question; in Windows, you can do it through the system GUI for the purpose.
superuser.com may be a better place to ask further, i.e. for more details if you need specifics about how ...
Why is require_once so bad to use?
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require_once and include_once both require that the system keeps a log of what's already been included/required. Every *_once call means checking that log. So there's definitely some extra work being done there but enough to detriment th...
How to iterate through SparseArray?
Is there a way to iterate over Java SparseArray (for Android) ? I used sparsearray to easily get values by index. I could not find one.
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How can I use inverse or negative wildcards when pattern matching in a unix/linux shell?
Say I want to copy the contents of a directory excluding files and folders whose names contain the word 'Music'.
11 Answers...