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How can I check if a single character appears in a string?
... Ömer Erden
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answered Feb 3 '09 at 5:40
mP.mP.
16.5k99 gold badges6565 s...
Django filter queryset __in for *every* item in list
... return self.name
In [2]: t1 = Tag.objects.create(name='holiday')
In [3]: t2 = Tag.objects.create(name='summer')
In [4]: p = Photo.objects.create()
In [5]: p.tags.add(t1)
In [6]: p.tags.add(t2)
In [7]: p.tags.all()
Out[7]: [<Tag: holiday>, <Tag: summer>]
Using chained filters appr...
How to generate a range of numbers between two numbers?
...n + 10*tens.n + 100*hundreds.n + 1000*thousands.n
FROM (VALUES(0),(1),(2),(3),(4),(5),(6),(7),(8),(9)) ones(n),
(VALUES(0),(1),(2),(3),(4),(5),(6),(7),(8),(9)) tens(n),
(VALUES(0),(1),(2),(3),(4),(5),(6),(7),(8),(9)) hundreds(n),
(VALUES(0),(1),(2),(3),(4),(5),(6),(7),(8),(9)) thousan...
Undocumented NSURLErrorDomain error codes (-1001, -1003 and -1004) using StoreKit
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344
All error codes are on "CFNetwork Errors Codes References" on the documentation (link)
A smal...
Initializing C# auto-properties [duplicate]
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231
Update - the answer below was written before C# 6 came along. In C# 6 you can write:
public cl...
What is the most efficient way to concatenate N arrays?
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335
If you're concatenating more than two arrays, concat() is the way to go for convenience and li...
Should I use Java date and time classes or go with a 3rd party library like Joda Time?
...ke me at 7am wherever I am") and an instant in time ("I'm calling James at 3pm PST; it may not be 3pm where he is, but it's the same instant")
I believe it makes it easier to update the timezone database, which does change relatively frequently
It has a good immutability story, which makes life a lo...
What is the MySQL VARCHAR max size?
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300
Keep in mind that MySQL has a maximum row size limit
The internal representation of a MySQ...