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Rails create or update magic?
...this class to implement a create_or_update method. If an object is found it will update it, otherwise it will create a new one.
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How can I explicitly free memory in Python?
...put file to create a few million objects representing triangles. The algorithm is:
9 Answers
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How can I let a table's body scroll but keep its head fixed in place?
I am writing a page where I need an HTML table to maintain a set size. I need the headers at the top of the table to stay there at all times but I also need the body of the table to scroll no matter how many rows are added to the table. Think a mini version of excel. This seems like a simple task bu...
Is there any way to do a “Replace Or Insert” using web.config transformation?
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I found a cheap workaround. It ain't pretty and won't work very well if you have a lot of elements that needs to be "Replace Or Insert".
Do a "Remove" and then an "InsertAfter|InsertBefore".
For example,
<authorization xdt:Transform="Remove" />...
Detailed 500 error message, ASP + IIS 7.5
...s To Browser" is not working set also this:
Error Pages -> 500 -> Edit Feature Settings -> "Detailed Errors"
Also note that if the content of the error page sent back is quite short and you're using IE, IE will happily ignore the useful content sent back by the server and show you its o...
How to retrieve an element from a set without removing it?
...set:
for e in s:
break
# e is now an element from s
Or...
e = next(iter(s))
But in general, sets don't support indexing or slicing.
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How to detect DIV's dimension changed?
I've the following sample html, there is a DIV which has 100% width. It contains some elements. While performing windows re-sizing, the inner elements may be re-positioned, and the dimension of the div may change. I'm asking if it is possible to hook the div's dimension change event? and How to do t...
Most common C# bitwise operations on enums
For the life of me, I can't remember how to set, delete, toggle or test a bit in a bitfield. Either I'm unsure or I mix them up because I rarely need these. So a "bit-cheat-sheet" would be nice to have.
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How to add to the PYTHONPATH in Windows, so it finds my modules/packages?
...that has worked for me which I hadn't found in any of the docs offered.
EDIT: For those who are not able to get it,
Please add
C:\Python27;
along with it. Else it will never work.
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Correct format specifier for double in printf
What is the correct format specifier for double in printf? Is it %f or is it %lf ? I believe it's %f , but I am not sure.
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