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What are best practices that you use when writing Objective-C and Cocoa? [closed]
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Weak and strong property setter attributes in Objective-C
...are done with it.Using the keyword strong means that you own the object.
Example:
@property (strong, nonatomic) ViewController *viewController;
@synthesize viewController;
02.weak (iOS4 = unsafe_unretained )
- it says "keep this as long as someone else points to it strongly"
- the same ...
Is unsigned integer subtraction defined behavior?
.../9)
As you can see, (unsigned)0 - (unsigned)1 equals -1 modulo UINT_MAX+1, or in other words, UINT_MAX.
Note that although it does say "A computation involving unsigned operands can never overflow", which might lead you to believe that it applies only for exceeding the upper limit, this is pre...
What do the terms “CPU bound” and “I/O bound” mean?
...is I/O bound if it would go faster if the I/O subsystem was faster. Which exact I/O system is meant can vary; I typically associate it with disk, but of course networking or communication in general is common too. A program that looks through a huge file for some data might become I/O bound, since t...
What is the difference between JDK dynamic proxy and CGLib?
In case of the Proxy Design Pattern , What is the difference between JDK's Dynamic Proxy and third party dynamic code generation API s such as CGLib ?
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Difference between Observer, Pub/Sub, and Data Binding
...a Binding
Essentially, at the core this just means "the value of property X on object Y is semantically bound to the value of property A on object B. No assumptions are made as to how Y knows or is fed changes on object B.
Observer, or Observable/Observer
A design pattern by which an object is im...
Referencing a string in a string array resource with xml
... on the menu. There are 17 items. I made a string array in values/arrays.xml with titles for each of these 17 items.
5 An...
Difference between Grunt, NPM and Bower ( package.json vs bower.json )
... npm and bower, building my first app in emberjs :).
I do have a bit of experience with rails, so I'm familiar with the idea of files for listing dependencies (such as bundler Gemfile)
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Selecting and manipulating CSS pseudo-elements such as ::before and ::after using jQuery
...});
In CSS:
span:after {
content: attr(data-content) ' any other text you may want';
}
If you want to prevent the 'other text' from showing up, you could combine this with seucolega's solution like this:
In HTML:
<span>foo</span>
In jQuery:
$('span').hover(function(){
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Error message “Forbidden You don't have permission to access / on this server” [closed]
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