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How to correctly save instance state of Fragments in back stack?
...
This is not related to question, onSaveInstance is not called when fragment is putted to backstack
– Tadas Valaitis
Jan 7 '15 at 10:14
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How do I find Waldo with Mathematica?
... many images of Waldo - all variations of him sitting, standing, occluded, etc.; shirt, hat, camera, and all the works. You don't need a large corpus of Waldos (maybe 3-5 will be enough), but the more the better.
This will assign clouds of probabilities to various elements occurring in whatever the...
Performance of Find() vs. FirstOrDefault() [duplicate]
...ject an anonmyous data item just for compilation
List<\u003C\u003Ef__AnonymousType0<string>> source = Enumerable.ToList(Enumerable.Select(Enumerable.Range(0, 1000000), i =>
{
var local_0 = new
{
Name = Guid.NewGuid().ToString()
};
return local_...
How to encode URL parameters?
... this set: +@?=:*#;,$&. This set is used in GET parameters (&, +, etc.), anchor tags (#), wildcard tags (*), email/username parts (@), etc..
For example -- If you use encodeURI(), user@example.com/?email=me@home will not properly send the second @ to the server, except for your browser hand...
IIS7 Permissions Overview - ApplicationPoolIdentity
...th exe opening , i was not able to open system browser like chrome firefox etc from it , was getting some cache type error , i think IIS move exe to its sandbox before lunching , so i switched to apache which do not have such issues
– user889030
Jul 1 at 5:05
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Differences between socket.io and websockets
...ds can i conclude that the following statement is wrong? Socket.IO is actually more than a layer over WebSockets.
– Pulak Kanti Bhattacharyya
Aug 9 '14 at 15:18
3
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Dictionaries and default values
...collections import defaultdict
a = defaultdict(lambda: "default", key="some_value")
a["blabla"] => "default"
a["key"] => "some_value"
You can pass any ordinary function instead of lambda:
from collections import defaultdict
def a():
return 4
b = defaultdict(a, key="some_value")
b['absent...
Are there disadvantages to using a generic varchar(255) for all text-based fields?
...s postcode , first name , last name , town , country , phone number etc, all of which are defined as VARCHAR(255) even though none of these fields will ever come close to having 255 characters. (If you're wondering, it's this way because Ruby on Rails migrations map String fields to VARCH...
What are some common uses for Python decorators? [closed]
...ading
lock = threading.Lock()
@synchronized(lock)
def do_something():
# etc
@synchronzied(lock)
def do_something_else():
# etc
Basically it just puts lock.acquire() / lock.release() on either side of the function call.
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How do I view all commits for a specific day?
...-until/--before parameters can also take stuff like 3 days ago, yesterday, etc.
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