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One line ftp server in python
... Right, I do deserve down-voting, but really, people should know Twisted. And of course Twisted is in the base install of many Linuxes.
– Ali Afshar
Feb 14 '11 at 17:42
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Detect if Android device has Internet connection
...eck if there is an active Internet connection is to try and connect
to a known server via http.
public static boolean hasActiveInternetConnection(Context context) {
if (isNetworkAvailable(context)) {
try {
HttpURLConnection urlc = (HttpURLConnection) (new URL("http://www.go...
How can I delete Docker's images?
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As @alexyz78 notes below, you can now use docker system prune. So to wipe everyhing: docker kill $(docker ps -q) to stop containers followed by a docker system prune -a will remove everything - see stackoverflow.com/a/44309011/247708
– B...
Tricky Google interview question
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@ThomasAhle Don't know if you saw this but it has code at the end that is capable of calculating n-th number in isolation. Like e.g. a billionth number.
– Will Ness
Aug 23 '16 at 21:37
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Creating an iframe with given HTML dynamically
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Interesting; I hadn't seen this technique before. I know that the URI encoding/decoding adds a performance hit, yet I've also seen it described as the sole alternative in environments that don't support the srcdoc property. Is there a downside to the document.write approach?
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retrieve links from web page using python and BeautifulSoup [closed]
...r class because it's a bit more efficient (memory and speed wise), if you know what you're parsing in advance.
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Get model's fields in Django
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Thank you Will. Good to know that other people are using _meta as well. I like the idea of having a wrapper function. Lazerscience, thank you also. Good to know there is a nice method to get the many_to_many fields. Joe
– Joe...
Fully custom validation error message with Rails
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Now, the accepted way to set the humanized names and custom error messages is to use locales.
# config/locales/en.yml
en:
activerecord:
attributes:
user:
email: "E-mail address"
errors:
models:
...
IOCTL Linux device driver [closed]
...IN_MAGIC 'P'
#define NUM 0
#define PAUSE_PRIN __IO(PRIN_MAGIC, NUM)
and now use ioctl as
ret_val = ioctl(fd, PAUSE_PRIN);
The corresponding system call in the driver module will receive the code and pause the printer.
__IOW(MAGIC, SEQ_NO, TYPE) MAGIC and SEQ_NO are the same as above, and TYP...
How do I get class name in PHP?
...function getClass()
{
return get_class();
}
}
Now you can do:
$className = MyClass::getClass();
This is somewhat limited, however, because if my class is extended it will still return 'MyClass'. We can use get_called_class instead, which relies on Late Static Binding...