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@import vs #import - iOS 7
I am playing around with some of the new iOS 7 features and working with some of the Image Effects as discussed in the WWDC video "Implementing Engaging UI on iOS". For producing a blur effect within the source code for the session, UIImage was extended via a category which imports UIKit like so:
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What Regex would capture everything from ' mark to the end of a line?
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Filtering a list of strings based on contents
...onsideration of functions as first-class objects, which is important for some programming paradigms. I wouldn't say they're very important to me, but I believe even newbies can benefit from thinking about programming this way, and definitely wouldn't call it inflicting.
– Eli B...
how to fire event on file select
...hronously, don't navigate away from the page, then attempt to upload the same file again? This code will only execute once, the second time, selecting the same file will not execute a change event
– Christopher Thomas
Mar 13 '14 at 15:11
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How to remove a key from Hash and get the remaining hash in Ruby/Rails?
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Rails has an except/except! method that returns the hash with those keys removed. If you're already using Rails, there's no sense in creating your own version of this.
class Hash
# Returns a hash that includes everything but the given keys.
# ha...
DateTime.Now vs. DateTime.UtcNow
...work. I know the second one is universal and basically doesn't deal with time zones, but can someone explain in detail how they work and which one should be used in what scenario?
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Why are functions and methods in PHP case-insensitive?
Functions and methods in PHP are case-insensitive as illustrated in the following example.
2 Answers
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Take the content of a list and append it to another list
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Yes, append is for one element, extend is like concat.
– Catalina Chircu
Feb 4 at 6:38
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Python Requests library redirect new url
I've been looking through the Python Requests documentation but I cannot see any functionality for what I am trying to achieve.
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Is List a subclass of List? Why are Java generics not implicitly polymorphic?
...e Bad
List<Dog> dogs = new ArrayList<Dog>(); // ArrayList implements List
List<Animal> animals = dogs; // Awooga awooga
animals.add(new Cat());
Dog dog = dogs.get(0); // This should be safe, right?
Suddenly you have a very confused cat.
Now, you can't add a Cat to a List<? ex...