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How to do a regular expression replace in MySQL?
...t and I don't know if you have a multibyte charset as your default: select cast( T.R as char) COLLATE utf8_unicode_ci from (select preg_replace('/ä/', '', 'öõüä') R ) T
– gillyspy
Feb 9 '14 at 19:46
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Is if(items != null) superfluous before foreach(T item in items)?
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It is not superflous. At runtime items will be casted to an IEnumerable and its GetEnumerator method will be called. That will cause a dereferencing of items that will fail
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What is a coroutine?
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Coroutines and concurrency are largely orthogonal. Coroutines are a general control structure whereby flow control is cooperatively passed between two different routines without returning.
The 'yield' statement in Python is a good exam...
How do I unload (reload) a Python module?
I have a long-running Python server and would like to be able to upgrade a service without restarting the server. What's the best way do do this?
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What are the differences between the threading and multiprocessing modules?
I am learning how to use the threading and the multiprocessing modules in Python to run certain operations in parallel and speed up my code.
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Zipping streams using JDK8 with lambda (java.util.stream.Streams.zip)
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Unless I'm missing something, there is no need for any cast (e.g. to Spliterator<A>).
– jub0bs
Aug 11 '16 at 14:41
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jQuery SVG, why can't I addClass?
...VGAnimatedString { baseVal="test svg", animVal="test svg"}
If we were to cast that SVGAnimatedString object to a string as jQuery does, we would have [object SVGAnimatedString], which is where jQuery fails.
How the jQuery SVG plugin handles this:
The jQuery SVG plugin works around this by patching...
How to implement onBackPressed() in Fragments?
...mixing safe calls (.?) and enforcing non-nulls (!!) can lead to NPEs - the cast is not always safe. I'd rather write if ((fragment as? IOnBackPressed)?.onBackPressed()?.not() == true) { ... } or more kotliney (fragment as? IOnBackPressed)?.onBackPressed()?.not()?.let { ... }
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Difference between 'new operator' and 'operator new'?
...own container, you can call operator new directly, like:
char *x = static_cast<char *>(operator new(100));
It's also possible to overload operator new either globally, or for a specific class. IIRC, the signature is:
void *operator new(size_t);
Of course, if you overload an operator new...
Is it safe to check floating point values for equality to 0?
...rns true
The problem is, programmer sometimes forgets that implicit type cast (double to float) is happening for the comparison and the it results into a bug.
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