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Is False == 0 and True == 1 an implementation detail or is it guaranteed by the language?
...rue == 1 , in Python (assuming that they are not reassigned by the user)? For instance, is it in any way guaranteed that the following code will always produce the same results, whatever the version of Python (both existing and, likely, future ones)?
...
unique object identifier in javascript
...ed to do some experiment and I need to know some kind of unique identifier for objects in javascript, so I can see if they are the same. I don't want to use equality operators, I need something like the id() function in python.
...
What's the difference between __PRETTY_FUNCTION__, __FUNCTION__, __func__?
...nly use __FUNCTION__ if you are using a compiler that does not support it (for example, Visual C++, which does not support C99 and does not yet support all of C++0x, does not provide __func__).
__PRETTY_FUNCTION__ is a gcc extension that is mostly the same as __FUNCTION__, except that for C++ functi...
How to get POSTed JSON in Flask?
... None here.
You need to set the request content type to application/json for the .json property and .get_json() method (with no arguments) to work as either will produce None otherwise. See the Flask Request documentation:
This will contain the parsed JSON data if the mimetype indicates JSON (...
What is the id( ) function used for?
...an integer (or long integer) which is guaranteed to be unique and constant for this object during its lifetime." (Python Standard Library - Built-in Functions) A unique number. Nothing more, and nothing less. Think of it as a social-security number or employee id number for Python objects.
Is it...
Adding git branch on the Bash command prompt
...Its most basic usage is:
$ __git_ps1
(master)
It also takes an optional format string:
$ __git_ps1 'git:[%s]'
git:[master]
How to Get It
First, copy the file to somewhere (e.g. ~/.git-prompt.sh).
Option 1: use an existing copy on your filesystem. Example (Mac OS X 10.15):
$ find / -name 'g...
What is __gxx_personality_v0 for?
...
It is used in the stack unwiding tables, which you can see for instance in the assembly output of my answer to another question. As mentioned on that answer, its use is defined by the Itanium C++ ABI, where it is called the Personality Routine.
The reason it "works" by defining it a...
Cooler ASCII Spinners? [closed]
...⢀⠠⠐⠈ The entire braille block, even in random order http://www.fileformat.info/info/unicode/block/braille_patterns/images.htm
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What is the most pythonic way to check if an object is a number?
...ber
... from decimal import Decimal
... from fractions import Fraction
... for n in [2, 2.0, Decimal('2.0'), complex(2, 0), Fraction(2, 1), '2']:
... print(f'{n!r:>14} {isinstance(n, Number)}')
2 True
2.0 True
Decimal('2.0') True
(2+0j) True
Fraction(2, 1)...
Why does ReSharper tell me “implicitly captured closure”?
...ted as long as the first lambda is in use.
The compiler generates a class for both lambda expressions and puts all variables in that class which are used in the lambda expressions.
So in my example g and i are held in the same class for execution of my delegates. If g is a heavy object with a lot ...