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Prevent segue in prepareForSegue method?
...r:(NSString *)identifier sender:(id)sender
In your view controller. You do your validation there, and if it's OK then return YES; if it's not then return NO; and the prepareForSegue is not called.
Note that this method doesn't get called automatically when triggering segues programmatically. If ...
What is the difference between GitHub and gist?
...hile gists are only a good fit for very small projects. For example, gists do support multi-files, but the interface is very simple, and they're limited in features, so they don't even have a file browser, nor issues, pull requests or wiki. If you dont need to have that, gists are very nice and more...
How Do I Fetch All Old Items on an RSS Feed?
... I can handle the "parse XML" bit. The thing I'm getting stuck on is "How do I fetch older posts?"
7 Answers
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Git clone without .git directory
Is there a flag to pass to git when doing a clone, say don't clone the .git directory? If not, how about a flag to delete the .git directory after the clone?
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(HTML) Download a PDF file instead of opening them in browser when clicked
I was wondering how to make a PDF file link downloadable instead of opening them in the browser? How is this done in html? (I'd assume it's done via javascript or something).
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How to overlay images
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I just got done doing this exact thing in a project. The HTML side looked a bit like this:
<a href="[fullsize]" class="gallerypic" title="">
<img src="[thumbnail pic]" height="90" width="140" alt="[Gallery Photo]" class="pic...
Modify Address Bar URL in AJAX App to Match Current State
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The way to do this is to manipulate location.hash when AJAX updates result in a state change that you'd like to have a discrete URL. For example, if your page's url is:
http://example.com/
If a client side function executed this ...
How do I find the location of my Python site-packages directory?
How do I find the location of my site-packages directory?
21 Answers
21
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How do I concatenate strings in Swift?
...orld"
let first = a + ", " + b
let second = "\(a), \(b)"
You could also do:
var c = "Hello"
c += ", World"
I'm sure there are more ways too.
Bit of description
let creates a constant. (sort of like an NSString). You can't change its value once you have set it. You can still add it to other t...
XmlSerializer: remove unnecessary xsi and xsd namespaces
Is there a way to configure the XmlSerializer so that it doesn't write default namespaces in the root element?
4 Answers
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