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looping through an NSMutableDictionary
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A standard way would look like this
for(id key in myDict) {
id value = [myDict objectForKey:key];
[value doStuff];
}
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Insert a line at specific line number with sed or awk
I have a script file which I need to modify with another script to insert a text at the 8th line.
9 Answers
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Missing file warnings showing up after upgrade to Xcode 4
...e way too difficult. The problem is that you have removed the project from filesystem but SVN still thinks they are there.
Detaching project from SVN will work, the same for removing .svn folders BUT that is going to destroy your repository!
It is much easier to open console, browse to your folder ...
How can I stage and commit all files, including newly added files, using a single command?
How can I stage and commit all files, including newly added files, using a single command?
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Add a prefix string to beginning of each line
I have a file as below:
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How to check if a file is a valid image file?
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A lot of times the first couple chars will be a magic number for various file formats. You could check for this in addition to your exception checking above.
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Is there an auto increment in sqlite?
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You get one for free, called ROWID. This is in every SQLite table whether you ask for it or not.
If you include a column of type INTEGER PRIMARY KEY, that column points at (is an alias for) the automatic ROWID column.
ROWID (by whatever name you call it)...
Is SQL or even TSQL Turing Complete?
...e true programming languages, so that's kinda cheating).
In this set of slides Andrew Gierth proves that with CTE and Windowing SQL is Turing Complete, by constructing a cyclic tag system, which has been proved to be Turing Complete. The CTE feature is the important part however -- it allows you to...
Is it possible to define more than one function per file in MATLAB, and access them from outside tha
...duate degree in EE, MATLAB required each function to be defined in its own file, even if it was a one-liner.
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Visual Studio Copy Project
...py of my project. I would rather not start doing it from scratch by adding files and references, etc. Please note that I don't mean copy for deployment. Just plain copy.
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