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SQLAlchemy: What's the difference between flush() and commit()?
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answered Nov 17 '10 at 6:25
snapshoesnapshoe
9,79611 gold badge2121 silver badges2323 bronze badges
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List comprehension: Returning two (or more) items for each item
...>>> list(chain.from_iterable((f(x), g(x)) for x in range(3)))
[2, 0, 3, 1, 4, 4]
Timings:
from timeit import timeit
f = lambda x: x + 2
g = lambda x: x ** 2
def fg(x):
yield f(x)
yield g(x)
print timeit(stmt='list(chain.from_iterable((f(x), g(x)) for x in range(3)))',
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What is the difference between native code, machine code and assembly code?
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edited Aug 8 '10 at 12:35
answered Aug 8 '10 at 12:14
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What is the difference between the states selected, checked and activated in Android?
...d);
}
}
Thanks to the following:
http://sriramramani.wordpress.com/2012/11/17/custom-states/
Stackoverflow: How to add a custom button state
Stackoverflow: Custom Checkable View which responds to Selector
http://www.charlesharley.com/2012/programming/custom-drawable-states-in-android/
htt...
How to check if an object is a certain type
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160
In VB.NET, you need to use the GetType method to retrieve the type of an instance of an object, ...
What's the difference between streams and datagrams in network programming?
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305
A long time ago I read a great analogy for explaining the difference between the two. I don't ...
How can I shuffle an array? [duplicate]
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1006
Use the modern version of the Fisher–Yates shuffle algorithm:
/**
* Shuffles array in plac...
Return type of '?:' (ternary conditional operator)
...e as the result of this conversion would not be an lvalue.
ISO/IEC 14882:2011 references:
3.10 [basic.lval] Lvalues and rvalues (about value categories)
5.15 [expr.cond] Conditional operator (rules for what type and value category a conditional expression has)
5.17 [expr.ass] Assignment and compoun...
Why is whitespace sometimes needed around metacharacters?
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Toothbrush
2,0102121 silver badges3333 bronze badges
answered Jan 17 '14 at 13:20
Dmitri ChubarovDmitri Chubarov
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How can you make a custom keyboard in Android?
...xml folder (if the folder does not exist, created it).
<?xml version="1.0" encoding="utf-8"?>
<Keyboard xmlns:android="http://schemas.android.com/apk/res/android"
android:keyWidth="15%p"
android:keyHeight="15%p" >
<Row>
<Key android:codes="1" android:key...