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How to suppress “unused parameter” warnings in C?
...
I'm using #define UNUSED(...) (void)(__VA_ARGS__) which allows me to apply this to multiple variables.
– Matthew Mitchell
Nov 13 '14 at 18:31
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Get model's fields in Django
...o list all of its fields. I've seen some examples of doing this using the _meta model attribute, but doesn't the underscore in front of meta indicate that the _meta attribute is a private attribute and shouldn't be accessed directly? ... Because, for example, the layout of _meta could change in th...
How to pick just one item from a generator?
...ption if necessary, or use the default argument to next():
next(g, default_value)
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How to check if a python module exists without importing it
...mport can find something in python2, using imp
import imp
try:
imp.find_module('eggs')
found = True
except ImportError:
found = False
To find dotted imports, you need to do more:
import imp
try:
spam_info = imp.find_module('spam')
spam = imp.load_module('spam', *spam_info)
i...
How do I read any request header in PHP
...instead of all headers, the quickest method is:
<?php
// Replace XXXXXX_XXXX with the name of the header you need in UPPERCASE (and with '-' replaced by '_')
$headerStringValue = $_SERVER['HTTP_XXXXXX_XXXX'];
ELSE IF: you run PHP as an Apache module or, as of PHP 5.4, using FastCGI (simple me...
How to schedule a function to run every hour on Flask?
...om apscheduler.schedulers.background import BackgroundScheduler
def print_date_time():
print(time.strftime("%A, %d. %B %Y %I:%M:%S %p"))
scheduler = BackgroundScheduler()
scheduler.add_job(func=print_date_time, trigger="interval", seconds=3)
scheduler.start()
# Shut down the scheduler when ...
String concatenation in Ruby
...; but that is not the usual way
With string interpolation
source = "#{ROOT_DIR}/#{project}/App.config"
with +
source = "#{ROOT_DIR}/" + project + "/App.config"
The second method seems to be more efficient in term of memory/speed from what I've seen (not measured though). All three methods will...
Use of 'prototype' vs. 'this' in JavaScript?
...hich can be accessed with Object.getPrototypeOf(myObject) or with myObject.__proto__ in some browsers. The proto property indicates the object's parent in the prototype chain (or the object from which this object inherits). The prototype property (which is only on functions) indicated the object t...
Delete directory with files in it?
...e is an example:
public static function deleteDir($dirPath) {
if (! is_dir($dirPath)) {
throw new InvalidArgumentException("$dirPath must be a directory");
}
if (substr($dirPath, strlen($dirPath) - 1, 1) != '/') {
$dirPath .= '/';
}
$files = glob($dirPath . '*', ...
How exactly does __attribute__((constructor)) work?
... edited Mar 20 at 8:25
io_guy
1344 bronze badges
answered Jan 12 '10 at 22:52
jannebjanneb
...