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Custom dealloc and ARC (Objective-C)
...ing ARC, you simply do not call [super dealloc] explicitly - the compiler handles it for you (as described in the Clang LLVM ARC document, chapter 7.1.2):
- (void) dealloc
{
[observer unregisterObject:self];
// [super dealloc]; //(provided by the compiler)
}
...
difference between collection route and member route in ruby on rails?
What is the difference between collection routes and member routes in Rails?
4 Answers
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Show/hide 'div' using JavaScript
For a website I'm doing, I want to load one div, and hide another, then have two buttons that will toggle views between the div using JavaScript.
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Bootstrap carousel multiple frames at once
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Updated 2019...
Bootstrap 4
The carousel has changed in 4.x, and the multi-slide animation transitions can be overridden like this...
.carousel-inner .carousel-item-right.active,
.carousel-inner .carousel-item-next {
transform: translateX(33.33%);
}
.carousel-inner .carousel-item-l...
Understanding exactly when a data.table is a reference to (vs a copy of) another data.table
I'm having a little trouble understanding the pass-by-reference properties of data.table . Some operations seem to 'break' the reference, and I'd like to understand exactly what's happening.
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Fastest way to tell if two files have the same contents in Unix/Linux?
...er two files contain the same data or not. I do this a for a lot of files, and in my script the diff command seems to be the performance bottleneck.
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I need an unordered list without any bullets
...:
ul {
list-style-type: none;
}
You might also want to add padding: 0 and margin: 0 to that if you want to remove indentation as well.
See Listutorial for a great walkthrough of list formatting techniques.
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Why can't the C# constructor infer type?
... could identify all types called Foo in scope regardless of generic arity, and then do overload resolution on each using a modified method type inference algorithm. We'd then have to create a 'betterness' algorithm that determines which of two applicable constructors in two types that have the same ...
Shortest way to print current year in a website
...vaScript has "automatic semicolon insertion," a feature I normally despise and rail against, but in this specific use case it should be safe enough.
It's important to note that this only works on browsers where JavaScript is enabled. Ideally, this would be better handled as an offline batch job (s...
Have a fixed position div that needs to scroll if content overflows
...d this for an adaptation of a Codrops article. Some might need to use left and right set to 0 also. Thank a lot, luck
– Santiago Baigorria
Oct 14 '13 at 18:56
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