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How to delete an item in a list if it exists?
... in memory - like when you just want to iterate over the elements one at a time. If you are only iterating over the list, you can think of a generator expression as a lazy evaluated list comprehension:
for item in (x for x in some_list if x is not thing):
do_your_thing_with(item)
See this Py...
What's the best way to trim std::string?
...t you are doing is fine and robust. I have used the same method for a long time and I have yet to find a faster method:
const char* ws = " \t\n\r\f\v";
// trim from end of string (right)
inline std::string& rtrim(std::string& s, const char* t = ws)
{
s.erase(s.find_last_not_of(t) + 1);...
AngularJS: Service vs provider vs factory
...n expect() is a poor choice to explain something. Use real world code next time.
– Craig
Oct 3 '14 at 20:23
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Is System.nanoTime() completely useless?
As documented in the blog post Beware of System.nanoTime() in Java , on x86 systems, Java's System.nanoTime() returns the time value using a CPU specific counter. Now consider the following case I use to measure time of a call:
...
how to delete all cookies of my website in php
...', $cookie);
$name = trim($parts[0]);
setcookie($name, '', time()-1000);
setcookie($name, '', time()-1000, '/');
}
}
http://www.php.net/manual/en/function.setcookie.php#73484
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Putty: Getting Server refused our key Error
...cify the full path to the exe otherwise sshd complains.
This creates a one-time use connection listener. The -ddd is verbose level 3.
After making a connection, scanning the logs revealed:
debug1: trying public key file __PROGRAMDATA__/ssh/administrators_authorized_keys
debug3: Failed to open file...
Split a string by spaces — preserving quoted substrings — in Python
...
Wow, impressive. You posted at the exact same time as @Jerub. And 2 minutes after the question!
– xaviersjs
Jul 10 at 17:04
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Detecting an undefined object property
...feel free to use void 0.)
With how variables work out of the way, it’s time to address the actual question: object properties. There is no reason to ever use typeof for object properties. The earlier exception regarding feature detection doesn’t apply here – typeof only has special behaviour...
How to get hex color value rather than RGB value?
... rgb2hex's function body (not hex's body), so the array is not redefined 3 times per 1 call to rgb2hex. Also learn to use 'var', so you don't pollute the global scope.
– Matt
Nov 16 '09 at 8:22
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How to get the IP address of the docker host from inside a docker container
...to use this method in Dockerfile (except when we need this IP during build time only), because this IP will be hardcoded during build time.
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