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Why is there no std::stou?
...st does is sheer performance; I believe iostreams lose out against strtoul etc. by a considerable margin.
– Kerrek SB
Jan 3 '12 at 18:31
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How to get the name of enumeration value in Swift?
...ring { switch self { case .AuthorizedAlways: return "AuthorizedAlways" <etc> } } } - once you've done this, it should work as you'd expect: print("Auth status: (\status))".
– Jeffro
Apr 27 '16 at 19:41
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Django - Circular model import issue
...tax: apps.get_model('your_app_name.YourModel') convenient for use in a map etc.
– Taylor Edmiston
Feb 13 '17 at 4:45
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Run an OLS regression with Pandas Data Frame
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for other sklearn modules (decision tree, etc), I've used df['colname'].values, but that didn't work for this.
– szeitlin
Apr 29 '15 at 23:50
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What's the meaning of “=>” (an arrow formed from equals & greater than) in JavaScript?
...defined and called. This can require lots of gymnastics like self = this;, etc., to access or manipulate this from one function inside another function. For more info on this topic, see the explanation and examples in the Mozilla documentation.
Example Code
Example (also from the docs):
var a = [
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Null or default comparison of generic argument in C#
...ll match:
null for classes
null (empty) for Nullable<T>
zero/false/etc for other structs
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Double not (!!) operator in PHP
...for any true value (numbers other than zero, non-empty strings and arrays, etc.) you will get the boolean value TRUE, and for any false value (0, 0.0, NULL, empty strings or empty arrays) you will get the boolean value FALSE.
It is functionally equivalent to a cast to boolean:
return (bool)$row;
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How to add a footer to a UITableView in Storyboard
...an then drag subviews such as labels and buttons there, adjust the height, etc.
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Why is there huge performance hit in 2048x2048 versus 2047x2047 array multiplication?
...in L2 (i.e when you access matice2[0, 0], matice2[1, 0], matice2[2, 0] ... etc, nothing gets evicted) than there is no problem with cache misses with matice2 either.
Now to go deeper in how caches works, if byte address of your variable is X, than the cache line for it would be (X >> 6) &...
Why are functions and methods in PHP case-insensitive?
...parser slowly grew to include conditional tags, then loop tags, functions, etc. At no point did I think I was writing a scripting language. I was simply adding a little bit of functionality to the macro replacement parser. I was still writing all my real business logic in C.
I have read somewhere t...