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rsync: difference between --size-only and --ignore-times
...cp's the file. However, what if the metadata do match but files aren't actually the same? Then rsync probably didn't do what you intended.
Files that are the same size may still have changed. One simple example is a text file where you correct a typo -- like changing "teh" to "the". The file size i...
Analyze audio using Fast Fourier Transform
...efficients you get out will be imaginary numbers even though your input is all real values. In order to get the amount of power in each frequency, you need to calculate the magnitude of the FFT coefficient for each frequency. This is not just the real component of the coefficient, you need to calcul...
How can I get a view's current width and height when using autolayout constraints?
...our existing constraints, the answer is not to inspect the constraints manually, since that would require you to re-implement the entire constraint-solving logic of the auto layout system in order to interpret those constraints. Instead, what you should do is just ask auto layout to update that layo...
How is Math.Pow() implemented in .NET Framework?
...k at the implementation of Math.Pow() function. But in .NET Reflector , all I found was this:
4 Answers
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Linux find file names with given string
I'm on Ubuntu, and I'd like to find all files in the current directory and subdirectories whose name contains the string "John". I know that grep can match the content in the files, but I have no idea how to use it with file names. Any help would be appreciated.
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Best practices around generating OAuth tokens?
...ere are any best practices for creating significantly secure tokens (especially Token/Secret combinations).
1 Answer
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Why use Object.prototype.hasOwnProperty.call(myObj, prop) instead of myObj.hasOwnProperty(prop)?
...y reference.
And since we are at it, why do we define this function at all?
See above.
Is it
just a question of shortcuts and local caching of property access for
(slight) performance gains...
It may make it quicker in theory, as the [[Prototype]] chain doesn't have to be followed, ...
Error: free(): invalid next size (fast):
... you have a memory error. You may be trying to free a pointer that wasn't allocated by malloc (or delete an object that wasn't created by new) or you may be trying to free/delete such an object more than once. You may be overflowing a buffer or otherwise writing to memory to which you shouldn't be...
How do I work with a git repository within another repository?
I have a Git media repository where I'm keeping all of my JavaScript and CSS master files and scripts that I'll use on various projects.
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How Python web frameworks, WSGI and CGI fit together
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How WSGI, CGI, and the frameworks are all connected?
Apache listens on port 80. It gets an HTTP request. It parses the request to find a way to respond. Apache has a LOT of choices for responding. One way to respond is to use CGI to run a script. Another w...