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Convert a List into an ObservableCollection
... edited Sep 13 '17 at 4:14
Casper
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answered May 8 '13 at 4:12
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How to return an NSMutableArray from an NSSet
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Since -allObjects returns an array, you can create a mutable version with:
NSMutableArray *array = [NSMutableArray arrayWithArray:[set allObjects]];
Or, alternatively, if you want to handle the object ownership:
NSMutableArray *array = [[set allObjects] mutable...
Get all keys of an NSDictionary as an NSArray
...ic class has a specific method, look up Apple's own documentation. In this case, see NSDictionary class reference. Go through all the methods. You'll discover many useful methods that way.
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File extension for PowerShell 3
...Photoshop. Other sources say that versioning had been indeed the reason to call it ps1, but they dropped this idea when introducing PS 2 (official source).
– ComFreek
Sep 8 '14 at 18:52
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Get file name and extension in Ruby
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You can use the following functions for your purpose:
path = "/path/to/xyz.mp4"
File.basename(path) # => "xyz.mp4"
File.extname(path) # => ".mp4"
File.basename(path, ".mp4") # => "xyz"
File.basename(pa...
What is choice_set in this Django app tutorial?
...Django's ORM follows the relationship backwards from Question too, automatically generating a field on each instance called foo_set where Foo is the model with a ForeignKey field to that model.
choice_set is a RelatedManager which can create querysets of Choice objects which relate to the Question ...
grep output to show only matching file
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grep -l
(That's a lowercase L)
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What's a 3D doing in this HTML?
I'm trying to duplicate a mailer I got into my gmail by taking a look at its code. I see a lot of this in multiple source viewers:
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Why does sed not replace all occurrences?
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Adding a corner case for GNU sed here: sed -E 's,foo,bar,g' doesn't do the global thing. If you change it to sed -E -e 's,foo,bar,g' it works.
– Melvyn Sopacua
Dec 12 '18 at 13:51
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How do I check for last loop iteration in Django template?
I have a basic question, in the Django template language how can you tell if you are at the last loop iteration in a for loop?
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