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Python __call__ special method practical example
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This example uses memoization, basically storing values in a table (dictionary in this case) so you can look them up later instead of recalculating them.
Here we use a simple class with a __call__ method to calculate factorials (through a callable object) instead of a factorial functi...
what is the difference between XSD and WSDL
... calls to fetch data from servicer and convert data returned into their suitable requirement and then display or publish data or information about the product on their website. A simple example would be FLIGHT Ticket booking. An airline will let third parties to use flight data on their site for tic...
Should I make HTML Anchors with 'name' or 'id'?
...o don't forget, you can use this not only with spans but with divs or even table cells, and then you have access to the :target pseudo-class on the element. Just watch out not to change the width, like with bold text, cause that moves content around, which is disturbing.
Named anchors - my vote is ...
Can I add a custom attribute to an HTML tag?
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There is a good table of different doctypes and corresponding browser modes here: hsivonen.fi/doctype/#handling. HTML5 doctype switches all post-2001 browsers into (Full) Standards mode. XHTML Transitional and HTML 4 Transitional (especially...
Is it expensive to use try-catch blocks even if an exception is never thrown?
...tln:(Ljava/lang/String;)V
17: aload_1
18: athrow
Exception table:
from to target type
0 9 8 any
}
No "GOTO".
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How do I do base64 encoding on iOS?
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#import "NSStringAdditions.h"
static char base64EncodingTable[64] = {
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', ...
Nullable vs. int? - Is there any difference?
...te a nullable property with a nullable field in the corresponding database table.
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PHP - how to create a newline character?
...uble quotes "" interpolate, meaning they convert escaped characters to printable characters.
Strings between single quotes '' are literal, meaning they are treated exactly as the characters are typed in.
You can have both on the same line:
echo '$clientid $lastname ' . "\r\n";
echo "$clientid $l...
Difference between malloc and calloc?
...r non-IEEE floats, but that's no excuse for thinking your code is truly portable when it isn't.
– Steve Jessop
Oct 8 '09 at 15:51
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DatabaseError: current transaction is aborted, commands ignored until end of transaction block?
...n doing syncdb - I think it's to do with the order django goes through the tables.
– Stuart Axon
May 9 '12 at 15:41
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