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How to pad zeroes to a string?
...e a string of 10 characters long, padding as necessary.
>>> t = 'test'
>>> t.rjust(10, '0')
>>> '000000test'
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Try-catch speeding up my code?
I wrote some code for testing the impact of try-catch, but seeing some surprising results.
5 Answers
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In C, do braces act as a stack frame?
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It's implementation dependent. I wrote a short program to test what gcc 4.3.4 does, and it allocates all of the stack space at once at the start of the function. You can examine the assembly that gcc produces using the -S flag.
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Java: How to set Precision for double value? [duplicate]
... to N digits).
Rounds down the number (not round to nearest).
See sample test cases here.
123.12345678 ==> 123.123
1.230000 ==> 1.23
1.1 ==> 1.1
1 ==> 1.0
0.000 ==> 0.0
0.00 ==> 0.0
0.4 ==> 0.4
0 ==> 0.0
1.4999 ==> 1.499
1.4995 ==> 1.499
1.4994 ==> 1.499
Here's ...
How to tell if a JavaScript function is defined
...ttering my code than absolutely needed; therefore, this isn't my ideal for testing if something is a function.
– Jason Bunting
Sep 13 '10 at 21:10
4
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Why use deflate instead of gzip for text files served by Apache?
...like that is that it is often broken. Verve Studio have a user contributed test section that show how bad the situation is.
For example: deflate works in Safari 4.0 but is broken in Safari 5.1, it also always has issues on IE.
So, best thing to do is avoid deflate altogether, the minor speed b...
IN vs OR in the SQL WHERE Clause
...ied it with Oracle, and it was exactly the same.
CREATE TABLE performance_test AS ( SELECT * FROM dba_objects );
SELECT * FROM performance_test
WHERE object_name IN ('DBMS_STANDARD', 'DBMS_REGISTRY', 'DBMS_LOB' );
Even though the query uses IN, the Execution Plan says that it uses OR:
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Can multiple different HTML elements have the same ID if they're different elements?
...ript, the second ID would then be accessible with document.getElementById (tested on Chrome, FireFox & IE11). You can still select the div using other selection methods, and it's id property will be returned correctly.
Please note this above issue opens a potential security vulnerability in si...
Circle-Rectangle collision detection (intersection)
...the inner-product ( x= [x1,x2] , y = [y1,y2] , x*y = x1*y1 + x2*y2 )
your test would look like that:
//rectangle edges: TL (top left), TR (top right), BL (bottom left), BR (bottom right)
//point to test: POI
seperated = false
for egde in { {TL,TR}, {BL,BR}, {TL,BL},{TR-BR} }: // the edges
...
C# Object Pooling Pattern implementation
...e this to minimize locking, and I hope I haven't made any mistakes (I have tested this under multi-threaded conditions, but obviously not exhaustively).
You might be wondering why none of these methods bother checking to see whether or not the store has reached the maximum size. I'll get to that i...