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Best way of returning a random boolean value
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Numpy `logical_or` for more than two arguments
...ays is an array_like in NumPy terms, and can be used as a 2D array.
Outside of NumPy, you can also use Python's reduce:
>>> functools.reduce(np.logical_or, (x, y, z))
array([ True, True, True, False], dtype=bool)
However, unlike NumPy's reduce, Python's is not often needed. For mos...
Display current date and time without punctuation
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CSS3 selector :first-of-type with class name?
...ut that appears to be the only browser that supports it. There are tickets filed for implementing it Blink (Chrome), Gecko (Firefox), and a request to implement it in Edge, but no apparent progress on any of these.
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How to develop Desktop Apps using HTML/CSS/JavaScript? [closed]
...so you can do all the low level OS stuff you want(Growl, tray icons, local file access, com ports, etc) in your container app, and then all the application logic and gui in html/javascript. It allows you to intercept any http request to either serve local resources or perform some custom action. F...
UML class diagram enum
... actually isn't a stereotype but a keyword. Unfortunately the UML authors did not make any visual differentiation.
– qwerty_so
May 9 '18 at 8:13
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Delete column from SQLite table
...d after removing the columns for security; without vacuuming, the database file still contains the data of deleted columns.
– jj1bdx
Feb 14 '17 at 5:03
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(![]+[])[+[]]… Explain why this works
...// "number"
One more time, this is applied to an empty Array, and as I said before, the String representation of an Array is an empty string, and when you convert an empty string to Number, it is converted to zero:
+[]; // 0, because
+[].toString(); // 0, because
+""; // 0
Therefore we can "dec...
Type converting slices of interfaces
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In Go, there is a general rule that syntax should not hide complex/costly operations. Converting a string to an interface{} is done in O(1) time. Converting a []string to an interface{} is also done in O(1) time since a slice is still one value. However, converting a []string to ...
Inheriting constructors
...erit all of them. To inherit only selected ones you need to write the individual constructors manually and call the base constructor as needed from them.
Historically constructors could not be inherited in the C++03 standard. You needed to inherit them manually one by one by calling base implementa...