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What is the most efficient way to deep clone an object in JavaScript?
...ther. For example:
var A1 = {a: "2"};
var A2 = Object.assign({}, A1);
var A3 = {...A1}; // Spread Syntax
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Easy interview question got harder: given numbers 1..100, find the missing number(s) given exactly k
...tities, knowing bi allows to compute
c1 = a1 + a2 + ... ak
c2 = a1a2 + a1a3 + ... + ak-1ak
...
ck = a1a2 ... ak
If you expand the polynomial (x-a1)...(x-ak) the coefficients will be exactly c1, ..., ck - see Viète's formulas. Since every polynomial factors uniquely (ring of polynomials is an E...
string sanitizer for filename
...ontrol characters http://msdn.microsoft.com/en-us/library/windows/desktop/aa365247%28v=vs.85%29.aspx
[\x7F\xA0\xAD]| # non-printing characters DEL, NO-BREAK SPACE, SOFT HYPHEN
[#\[\]@!$&\'()+,;=]| # URI reserved https://tools.ietf.org/html/rfc3986#section-2.2
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Knight's Shortest Path on Chessboard
...your first move would have to be to the non-existent space to the left of (a3).
– John Hascall
Mar 13 '16 at 10:39
Rig...
Convert columns to string in Pandas
...aFrame({
...: 'A': [20, 30.0, np.nan],
...: 'B': ["a45a", "a3", "b1"],
...: 'C': [10, 5, np.nan]})
...:
In [79]: df.dtypes ## Current datatype
Out[79]:
A float64
B object
C float64
dtype: object
## Multiple columns string conversion
In [80]: df[["A", "C"]] =...
ServiceStack vs ASP.Net Web API [closed]
... edited Oct 30 '14 at 6:39
J0e3gan
8,14799 gold badges4646 silver badges7575 bronze badges
answered Mar 4 '14 at 6:54
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Is there an easy way to check the .NET Framework version?
... System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", false) != null;
}
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OAuth secrets in mobile apps
...ps.google.com/group/twitter-development-talk/browse_thread/thread/629b03475a3d78a1/de1071bf4b820c14#de1071bf4b820c14
Twitter and Yammer's solution is a authentication pin solution:
https://dev.twitter.com/oauth/pin-based
https://www.yammer.com/api_oauth_security_addendum.html
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How exactly does the callstack work?
...ariables, called the stack pointer (SP or A7) and the frame pointer (BP or A6).
When calling subroutine using either convention, any parameters are be pushed on the stack before calling the routine. The routine's code then pushes the current value of the frame pointer onto the stack, copies the cu...
Is it possible to run JavaFX applications on iOS, Android or Windows Phone 8?
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You can add that link: youtube.com/watch?v=a3dAteWr40k&feature=youtu.be ;-)
– assylias
Jan 5 '14 at 23:16
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