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Foreach loop, determine which is the last iteration of the loop
I have a foreach loop and need to execute some logic when the last item is chosen from the List , e.g.:
26 Answers
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ASP.NET MVC Conditional validation
...ional validation rules in MVC3; have your model inherit IValidatableObject and implement the Validate method:
public class Person : IValidatableObject
{
public string Name { get; set; }
public bool IsSenior { get; set; }
public Senior Senior { get; set; }
public IEnumerable<Vali...
Getting a slice of keys from a map
... It's slightly better to set the actual size instead of capacity and avoid append altogether. See my answer for details.
– Vinay Pai
Jan 8 '15 at 19:37
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Adding external library into Qt Creator project
...ave to separate the directory from the library name (without the extension and without any 'lib' prefix). Of course, if you are including a Windows specific lib, this really doesn't matter.
In case you want to store your lib files in the project directory, you can reference them with the $$_PRO_FIL...
Update a dataframe in pandas while iterating row by row
I have a pandas data frame that looks like this (its a pretty big one)
8 Answers
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“/usr/bin/ld: cannot find -lz”
I am trying to compile Android source code under Ubuntu 10.04. I get an error saying,
11 Answers
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fatal error: malformed or corrupted AST file - Xcode
...e. In Xcode, go to Window->Organizer->Projects, select your project, and press the "Delete..." button next to "Derived data".
If this doesn't work, you can try to do a Product->Clean (Cmd+Shift+k).
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how to concatenate two dictionaries to create a new one in Python? [duplicate]
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Slowest and doesn't work in Python3: concatenate the items and call dict on the resulting list:
$ python -mtimeit -s'd1={1:2,3:4}; d2={5:6,7:9}; d3={10:8,13:22}' \
'd4 = dict(d1.items() + d2.items() + d3.items())'
100000 loops, bes...
When converting a project to use ARC what does “switch case is in protected scope” mean?
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The braces help the compiler understand scope. I know GCC used to issue a warning if you declared a new variable at the first line of a case statement without the braces, and the WWDC 2011 video on ARC mentions something about enclosing cases in braces. If you ...
Postgres NOT in array
I'm using Postgres' native array type, and trying to find the records where the ID is not in the array recipient IDs.
7 An...