大约有 36,010 项符合查询结果（耗时：0.0354秒） [XML]
In Objective-C, how do I test the object type?
...nt to test to see if it is an NSString, the code would be:
[myObject isKindOfClass:[NSString class]]
Likewise, if you wanted to test myObject for a UIImageView:
[myObject isKindOfClass:[UIImageView class]]
share
...
How do you access command line arguments in Swift?
How do you access command line arguments for a command line application in Swift?
6 Answers
...
Big-O for Eight Year Olds? [duplicate]
... way of thinking about it is this:
O(N^2) means for every element, you're doing something with every other element, such as comparing them. Bubble sort is an example of this.
O(N log N) means for every element, you're doing something that only needs to look at log N of the elements. This is usua...
How do I get the last inserted ID of a MySQL table in PHP?
...requently inserted. I need to get the very last ID of the table. How can I do this?
21 Answers
...
Seeking clarification on apparent contradictions regarding weakly typed languages
...og on the 15th of October, 2012. Thanks for the great question!
What does it really mean for a language to be "weakly typed"?
It means "this language uses a type system that I find distasteful". A "strongly typed" language by contrast is a language with a type system that I find pleasant.
...
When do you use Java's @Override annotation and why?
...
Use it every time you override a method for two benefits. Do it so that you can take advantage of the compiler checking to make sure you actually are overriding a method when you think you are. This way, if you make a common mistake of misspelling a method name or not correctly mat...
How to change progress bar's progress color in Android
... want to change its progress color (which is Yellow by default). How can I do it using code (not XML)?
36 Answers
...
What does @synchronized() do as a singleton method in objective C?
...leton method, and I would like to know what the function @synchronized() does, as I use it frequently, but do not know the meaning.
...
“wait_fences: failed to receive reply: 10004003”?
...ations when you are not on screen ("will appear"). And the -viewDidAppear: docs explain that you must call super because they have their own things to do.
share
|
improve this answer
|
...
Haml: Control whitespace around text
...
A better way to do this has been introduced via Haml's helpers:
surround
= surround '(', ')' do
%a{:href => "food"} chicken
Produces:
(<a href='food'>chicken</a>)
succeed:
click
= succeed '.' do
%a{:href=>"thin...