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Python 3 turn range to a list
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In Pythons <= 3.4 you can, as others suggested, use list(range(10)) in order to make a list out of a range (In general, any iterable).
Another alternative, introduced in Python 3.5 with its unpacking generalizations, is by using * in a list literal []:
>>> r = range(10)
>>> l...
How to filter array in subdocument with MongoDB [duplicate]
...ents that match the
condition. The returned elements are in the original order.
db.test.aggregate([
{$match: {"list.a": {$gt:3}}}, // <-- match only the document which have a matching element
{$project: {
list: {$filter: {
input: "$list",
as: "list",
...
What is the difference between __init__ and __call__?
...hey were functions: pass them to other methods/functions and call them. In order to achieve this, the __call__ class function has to be specialized.
def __call__(self, [args ...])
It takes as an input a variable number of arguments. Assuming x being an instance of the Class X, x.__call__(1, 2)...
In HTML I can make a checkmark with ✓ . Is there a corresponding X-mark?
...ectly. Here's a good link to more symbols: danshort.com/HTMLentities/index.php?w=dingb
– Nathan Prather
Aug 26 '12 at 15:25
1
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Best way to store password in database [closed]
...ssword: Best Practices?
Is it ever ok to store password in plain text in a php variable or php constant?
To clarify a bit further on the salting bit, the danger with simply hashing a password and storing that is that if a trespasser gets a hold of your database, they can still use what are known a...
When is CRC more appropriate to use than MD5/SHA1?
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I ran every line of this PHP code in 1.000.000 loop. Results are in comments (#).
hash('crc32', 'The quick brown fox jumped over the lazy dog.');# 750ms 8 chars
hash('crc32b','The quick brown fox jumped over the lazy dog.');# 700ms 8 chars
has...
When should I use the Visitor Design Pattern? [closed]
...virtual void hereIsACat(Cat *c) = 0;
};
Then, we modify the hierarchy in order to accept new operations:
class Animal
{ public: virtual void letsDo(Operation *v) = 0; };
class Dog : public Animal
{ public: void letsDo(Operation *v); };
void Dog::letsDo(Operation *v)
{ v->hereIsADog(this); }
...
How is the undo tree used in Vim?
...rse all of the nodes in the tree in chronological or reverse-chronological order (which can be a bit confusing, because it can jump arbitrarily between undo branches, but if you do g- long enough you'll always get where you need to go eventually). :earlier and :later take a time descriptor like 7m ...
Testing Abstract Classes
How do I test the concrete methods of an abstract class with PHPUnit?
6 Answers
6
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How do I speed up the gwt compiler?
...ditional overhead from compile time.
Bottom line: you're not going to get order-of-magnitude increase in compiler performance, but taking several relaxations, you can shave off a few minutes here and there.
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