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How to extend an existing JavaScript array with another array, without creating a new array
There doesn't seem to be a way to extend an existing JavaScript array with another array, i.e. to emulate Python's extend method.
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How to select only the first rows for each unique value of a column
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Please explain what does rank, partition and [r] do
– Roberto
Sep 25 '15 at 18:11
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How to add /usr/local/bin in $PATH on Mac
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export PATH=$PATH:/usr/local/git/bin:/usr/local/bin
One note: you don't need quotation marks here because it's on the right hand side of an assignment, but in general, and especially on Macs with their tradition of spacy pat...
Are loops really faster in reverse?
...lly faster when counting backward? If so, why? I've seen a few test suite examples showing that reversed loops are quicker, but I can't find any explanation as to why!
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How to pass macro definition from “make” command line arguments (-D) to C source code?
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@WoodyHuang for example CFLAGS="-Dvar1=42 -Dvar2=314"
– ouah
Dec 5 '17 at 21:18
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How do I call Objective-C code from Swift?
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Using Objective-C Classes in Swift
If you have an existing class that you'd like to use, perform Step 2 and then skip to Step 5. (For some cases, I had to add an explicit #import <Foundation/Foundation.h to an older Objective-C File.)
Step 1: Add Objective-C Implementati...
How to Customize the time format for Python logging?
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Using logging.basicConfig, the following example works for me:
logging.basicConfig(
filename='HISTORYlistener.log',
level=logging.DEBUG,
format='%(asctime)s.%(msecs)03d %(levelname)s %(module)s - %(funcName)s: %(message)s',
datefmt='%Y-%m-%d %H:%M:%S...
How to split strings across multiple lines in CMake?
I usually have a policy in my project, to never create lines in text files that exceed a line length of 80, so they are easily editable in all kinds of editors (you know the deal). But with CMake I get the problem that I do not know how to split a simple string into multiple lines to avoid one huge ...
What is the difference between self-types and trait subclasses?
...inately used for Dependency Injection, such as in the Cake Pattern. There exists a great article covering many different forms of dependency injection in Scala, including the Cake Pattern. If you Google "Cake Pattern and Scala", you'll get many links, including presentations and videos. For now, her...
Generate a random double in a range
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To generate a random value between rangeMin and rangeMax:
Random r = new Random();
double randomValue = rangeMin + (rangeMax - rangeMin) * r.nextDouble();
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