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Is 'switch' faster than 'if'?
...ty. Any compiler worth its salt is going to see an if / else if ladder and transform it into equivalent switch or vice versa if it would be faster to do so.
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Reverse a string in Python
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Problem
Context
Python 2.x
Python 3.x
Scenario:
Developer wants to transform a string
Transformation is to reverse order of all the characters
Solution
example01 produces the desired result, using extended slice notation.
Pitfalls
Developer might expect something like string...
Git Symlinks in Windows
... all of the symlinks throughout the repository, as before) for selectively transforming git symlinks into NTFS hardlinks+junctions.
The checkout-symlinks alias has also been updated to accept multiple arguments (or none at all, == everything) for selective reversal of the aforementioned transformati...
Client-server synchronization pattern / algorithm?
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What you really need is Operational Transform (OT). This can even cater for the conflicts in many cases.
This is still an active area of research, but there are implementations of various OT algorithms around. I've been involved in such research for a number...
AngularJS : The correct way of binding to a service properties
... But what if a developer on your team decides that the controller needs to transform the data in some trivial way before the view displays it? (Whether controllers should transform data at all is another discussion.) If she doesn't make a copy of the object first she might unwittingly cause regressi...
Convert light frequency to RGB?
...ed a smooth preсise result.
There is no single RGB color space. Multiple transformation matrices and different kinds of gamma correction may be used.
Below is the C# code I came up with recently. It uses linear interpolation over the "CIE 1964 standard observer" table and sRGB matrix + gamma corr...
When to use std::forward to forward arguments?
...e it).
An example for the second case:
template<typename T>
Widget transform(T&& prop) {
prop.transform();
return std::forward<T>(prop);
}
This function template should move prop into the return value if it's an rvalue and copy it if it's an lvalue. In case that we omit...
XPath: How to select elements based on their value?
...mpare text() or . with a string "Data", it first uses string() function to transform those to string type, than gets a boolean result.
There are two important rule about string():
The string() function converts a node-set to a string by returning the string value of the first node in the node-set...
How to convert .crt to .pem [duplicate]
...; do openssl x509 -in "$f" -outform PEM -out "${f%.*}.pem" ; done It will transform, for example, file1.crt, file2.crt to file1.pem and file2.pem.
– Fernando Basso
Mar 13 at 12:33
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Download a working local copy of a webpage [closed]
...c.html will be modified to point to
‘../bar/img.gif’. This kind of transformation works reliably for arbitrary
combinations of directories.
The links to files that have not been downloaded by Wget will be changed to
include host name and absolute path of the location they point ...