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Python extract pattern matches
...h a standard python REPL, the last result is stored in a special variable called _. It isn't valid outside anywhere else.
– UltraInstinct
Mar 13 '19 at 2:25
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How to get item's position in a list?
...er probably 25 years of questioning functional programming, I think I'm finally getting the clue. list comprehension is da bomb.
– Charlie Martin
Dec 13 '08 at 18:30
15
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Why does integer division in C# return an integer and not a float?
...ogrammer to make this mistake of performing integer division when they actually meant to use floating point division, in actual practice integer division is a very common operation. If you are assuming that people rarely use it, and that every time you do division you'll always need to remember to ...
“You have mail” message in terminal, os X [closed]
...
and then type "d *" to erase all messages
– Ricardo Martins
Mar 20 '17 at 12:23
9
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What is `related_name` used for in Django?
... back to your model.
If you don't specify a related_name, Django automatically creates one using the name of your model with the suffix _set, for instance User.map_set.all().
If you do specify, e.g. related_name=maps on the User model, User.map_set will still work, but the User.maps. syntax is ob...
PHP abstract properties
...get_class($this) . ' must have a $tablename');
}
}
To enforce this for all derived classes of Foo_Abstract you would have to make Foo_Abstract's constructor final, preventing overriding.
You could declare an abstract getter instead:
abstract class Foo_Abstract {
abstract public function get_...
All combinations of a list of lists
I'm basically looking for a python version of Combination of List<List<int>>
7 Answers
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How could I use requests in asyncio?
I want to do parallel http request tasks in asyncio , but I find that python-requests would block the event loop of asyncio . I've found aiohttp but it couldn't provide the service of http request using a http proxy.
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Remove array element based on object property
...he index of the specific element and then splice using it.
myArray.splice(_.findIndex(myArray, function(item) {
return item.value === 'money';
}), 1);
Update
You can also use ES6's findIndex()
The findIndex() method returns the index of the first element in the array that satisfies the p...
“Code too large” compilation error in Java
...size for code in Java? I wrote a function with more than 10,000 lines. Actually, each line assigns a value to an array variable.
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