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Using bitwise OR 0 to floor a number
...wise operations except unsigned right shift, >>>, work on signed 32-bit integers. So using bitwise operations will convert a float to an integer.
Does it have any advantages over doing Math.floor? Maybe it's a bit
faster? (pun not intended)
http://jsperf.com/or-vs-floor/2 seems slig...
Maven: how to override the dependency added by a library
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answered Oct 14 '10 at 20:26
Colin HebertColin Hebert
82.7k1313 gold badges148148 silver badges145145 bronze badges
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Add a column to a table, if it does not already exist
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222
You can use a similar construct by using the sys.columns table io sys.objects.
IF NOT EXISTS ...
How to generate serial version UID in Intellij
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Without any plugins:
You just need to enable highlight: (Idea v.2016, 2017 and 2018, previous versions may have same or similar settings)
File -> Settings -> Editor -> Inspections -> Java -> Serialization issues -> Serializable class without 'serialVersionUID' - set...
Converting an integer to a hexadecimal string in Ruby
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327
You can give to_s a base other than 10:
10.to_s(16) #=> "a"
Note that in ruby 2.4 FixNum...
JavaScript - cannot set property of undefined
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data: c
};
};
If you're in an environment that supports ES2015 features, you can use computed property names:
d = {
[a]: {
greetings: b,
data: c
}
};
share
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improve t...
Python 3 ImportError: No module named 'ConfigParser'
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edited Apr 13 '16 at 12:10
Mark Amery
98.8k4848 gold badges336336 silver badges379379 bronze badges
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Calling Objective-C method from C++ member function?
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204
You can mix C++ with Objective-C if you do it carefully. There are a few caveats but generally...
Why doesn't height: 100% work to expand divs to the screen height?
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420
In order for a percentage value to work for height, the parent's height must be determined. The...