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'Operation is not valid due to the current state of the object' error during postback
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What does immutable mean?
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Samar Panda
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answered Jul 8 '10 at 1:57
kemiller2002kemiller...
Can we make unsigned byte in Java
...n.
I just tried this and for byte -12 (signed value) it returned integer 244 (equivalent to unsigned byte value but typed as an int):
public static int unsignedToBytes(byte b) {
return b & 0xFF;
}
public static void main(String[] args) {
System.out.println(unsignedToBytes((byte)...
Fast check for NaN in NumPy
...f numpy.min:
In [13]: %timeit np.isnan(np.min(x))
1000 loops, best of 3: 244 us per loop
In [14]: %timeit np.isnan(np.sum(x))
10000 loops, best of 3: 97.3 us per loop
Unlike min, sum doesn't require branching, which on modern hardware tends to be pretty expensive. This is probably the reason why...
How can I remove duplicate rows?
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Srini
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answered Aug 20 '08 at 22:00
Mark BrackettMark B...
Are nested HTML comments possible?
... johny why
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answered Jan 14 '09 at 12:35
Aaron DigullaAaron Digulla
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select count(*) from table of mysql in php
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Kermit
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answered Aug 2 '11 at 5:48
Shakti SinghShakti Singh
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How to present a simple alert message in java?
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241
I'll be the first to admit Java can be very verbose, but I don't think this is unreasonable:
J...
What are the drawbacks of Stackless Python? [closed]
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4 Answers
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How to get the number of days of difference between two dates on mysql?
...calculation
In your case, you'd use :
mysql> select datediff('2010-04-15', '2010-04-12');
+--------------------------------------+
| datediff('2010-04-15', '2010-04-12') |
+--------------------------------------+
| 3 |
+-------------------------------------...