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What are some common uses for Python decorators? [closed]
...ts, since Python 2.5 you can use a with statement in conjunction with a threading.Lock (or multiprocessing.Lock since version 2.6) object to simplify the decorator's implementation to just:
import functools
def synchronized(lock):
""" Synchronization decorator """
def wrap(f):
@fu...
How to convert an array into an object using stdClass() [duplicate]
...
It's already an array, so why do you need to convert it into an array again?
– Amal Murali
Oct 9 '13 at 12:34
...
Looping through a hash, or using an array in PowerShell
...
Shorthand is not preferred for scripts; it is less readable. The %{} operator is considered shorthand. Here's how it should be done in a script for readability and reusability:
Variable Setup
PS> $hash = @{
a = 1
b = 2
c = 3
}
PS> $hash
Name ...
Setting an object to null vs Dispose()
...way the CLR and GC works (I'm working on expanding my knowledge on this by reading CLR via C#, Jon Skeet's books/posts, and more).
...
Download File to server from URL
...($newf) {
while(!feof($file)) {
fwrite($newf, fread($file, 1024 * 8), 1024 * 8);
}
}
}
if ($file) {
fclose($file);
}
if ($newf) {
fclose($newf);
}
}
...
Alternate output format for psql
... query results to wrap multiple times. Consequently, the output is hard to read.
7 Answers
...
Download file of any type in Asp.Net MVC using FileResult?
...ype:
public FileResult Download()
{
byte[] fileBytes = System.IO.File.ReadAllBytes(@"c:\folder\myfile.ext");
string fileName = "myfile.ext";
return File(fileBytes, System.Net.Mime.MediaTypeNames.Application.Octet, fileName);
}
...
What's this =! operator? [duplicate]
...rounding binary operators with spaces, just to make it clear to the humans reading the code what the compiler is thinking.
I'm a bit surprised nobody else mentioned this, but then again I may be the only SO user to have ever touched a C compiler that old.
...
How do I get the first n characters of a string without checking the size or going out of bounds?
...);
Opinion: while this solution is "neat", I think it is actually less readable than a solution that uses if / else in the obvious way. If the reader hasn't seen this trick, he/she has to think harder to understand the code. IMO, the code's meaning is more obvious in the if / else version. Fo...
Is there an exponent operator in C#?
...n including exponents. The Math.Pow() method makes equations quite hard to read IMO.
Our solution was to create a special DoubleX class where we override the ^-operator (see below)
This works fairly well as long as you declare at least one of the variables as DoubleX:
DoubleX a = 2;
DoubleX b = 3;
...