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Determine function name from within that function (without using traceback)
...sing the traceback module, is there a way to determine a function's name from within that function?
19 Answers
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Generate a Hash from string in Javascript
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About half of the answers are the same String.hashCode function taken from Java. It is ancient (from Gosling Emacs, 1981), extremely weak, and performance-wise, it makes zero sense in modern JavaScript. In fact, hashCode is significantly faster by using ES6 Math.imul, but no one took notice. We...
How to check if there exists a process with a given pid in Python?
...to check to see if a pid corresponds to a valid process? I'm getting a pid from a different source other than from os.getpid() and I need to check to see if a process with that pid doesn't exist on the machine.
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getResourceAsStream() vs FileInputStream
...java.io are dependent on the current working directory. I.e. the directory from which the JVM (in your case: the webserver's one) is started. This may for example be C:\Tomcat\bin or something entirely different, but thus not C:\Tomcat\webapps\contextname or whatever you'd expect it to be. In a norm...
Java recursive Fibonacci sequence
...fibonacci(3) = 1+1 = 2
fibonacci(4) = 2+1 = 3
fibonacci(5) = 3+2 = 5
And from fibonacci sequence 0,1,1,2,3,5,8,13,21.... we can see that for 5th element the fibonacci sequence returns 5.
See here for Recursion Tutorial.
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How to generate random number with the specific length in python
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To get a random 3-digit number:
from random import randint
randint(100, 999) # randint is inclusive at both ends
(assuming you really meant three digits, rather than "up to three digits".)
To use an arbitrary number of digits:
from random import randin...
Difference: std::runtime_error vs std::exception()
... of the term).
std::runtime_error is a more specialized class, descending from std::exception, intended to be thrown in case of various runtime errors. It has a dual purpose. It can be thrown by itself, or it can serve as a base class to various even more specialized types of runtime error exceptio...
urlencode vs rawurlencode?
...is the encoding described in » RFC 3986 for protecting literal characters from being interpreted as special URL delimiters, and for protecting URLs from being mangled by transmission media with character conversions (like some email systems).
Note on RFC 3986 vs 1738. rawurlencode prior to php 5...
docker mounting volumes on host
...lumes (effectively sharing them between containers) by using the --volumes-from command when you run a container.
The fundamental difference between VOLUME and -v is this: -v will mount existing files from your operating system inside your docker container and VOLUME will create a new, empty volume...
Get Base64 encode file-data from Input Form
I've got a basic HTML form from which I can grab a bit of information that I'm examining in Firebug.
6 Answers
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