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How to find NSDocumentDirectory in Swift?
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Swift 3.0 and 4.0
Directly getting first element from an array will potentially cause exception if the path is not found. So calling first and then unwrap is the better solution
if let documentsPathString = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomai...
What is a “Bitmap heap scan” in a query plan?
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The best explanation comes from Tom Lane, which is the algorithm's author unless I'm mistaking. See also the wikipedia article.
In short, it's a bit like a seq scan. The difference is that, rather than visiting every disk page, a bitmap index scan AND...
How to revert a folder to a particular commit by creating a patch
...ut generating the diff, that would work too. Just generate the diff to go from your current state back to e095:
git diff 89cd..e095 -- somefolder
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(Built-in) way in JavaScript to check if a string is a valid number
...'12px' to 12, for example:
parseInt(num) // extracts a numeric value from the
// start of the string, or NaN.
Examples
parseInt('12') // 12
parseInt('aaa') // NaN
parseInt('12px') // 12
parseInt('foo2') // NaN These last two may be different
parseInt('12a...
What is the meaning of “this” in Java?
... a main method is required. If i add the main method, then I have to call from there. And any attempt to call frobnicate() inside main says that you can't call a non-static reference from inside a static one. And removing static from main returns the error again that no main method i s found. Ple...
Is it possible to allow didSet to be called during initialization in Swift?
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Why would this differ from self.someProperty = newValue in the init? Have you got a working test case?
– mmmmmm
Aug 10 '14 at 17:12
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Lisp in the real world
... listed as a desired skill on any job posting. I am interested in hearing from anyone who has used Lisp or seen it used in the "real world", or who knows whether it is considered a purely academic language.
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Simple argparse example wanted: 1 argument, 3 results
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Use the 'short form' when calling program directly from command line and the 'long form' when you run a program/command within a script. In that case it is more human readable with the long form and thus easier to follow the logic of the code/script.
– o...
Extracting substrings in Go
I'm trying to read an entire line from the console (including whitespace), then process it. Using bufio.ReadString, the newline character is read together with the input, so I came up with the following code to trim the newline character:
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How do I resolve “HTTP Error 500.19 - Internal Server Error” on IIS7.0 [closed]
...ool doesn't have rights to the web site directory, so it can't read config from there. Check the app pool and see what user it is configured to run as. Check the directory and see if that user has appropriate rights to it. While you're at it, check the event log and see if IIS logged any more det...