大约有 48,000 项符合查询结果(耗时:0.0557秒) [XML]
How to identify if a webpage is being loaded inside an iframe or directly into the browser window?
....self !== window.top;
} catch (e) {
return true;
}
}
top and self are both window objects (along with parent), so you're seeing if your window is the top window.
share
|
improve th...
Python Infinity - Any caveats?
So Python has positive and negative infinity:
5 Answers
5
...
What are all the common undefined behaviours that a C++ programmer should know about? [closed]
... the number (e.g. int64_t i = 1; i <<= 72 is undefined)
Types, Cast and Const
Casting a numeric value into a value that can't be represented by the target type (either directly or via static_cast)
Using an automatic variable before it has been definitely assigned (e.g., int i; i++; cout <...
Encapsulation vs Abstraction?
Here are the brief definitions of encapsulation and abstraction.
13 Answers
13
...
Problems with lib-icu dependency when installing Symfony 2.3.x via Composer
...icu4c // osx
check the extension is enabled and properly configured in php.ini aswell.
( hint: php-cli sometimes uses a different php.ini )
php.ini
extension=intl.so ; *nix
extension=php_intl.dll ; windows
[intl]
intl.default_locale = en_utf8
intl.error_lev...
Checking for a dirty index or untracked files with Git
...;/dev/null| grep "^M" | wc -l)
# Get number of files that are uncommitted and not added
expr $(git status --porcelain 2>/dev/null| grep "^ M" | wc -l)
# Get number of total uncommited files
expr $(git status --porcelain 2>/dev/null| egrep "^(M| M)" | wc -l)
Note: The 2>/dev/null filters...
How to check if all list items have the same value and return it, or return an “otherValue” if they
..., otherwise I need to use an “otherValue”. I can’t think of a simple and clear way of doing this.
9 Answers
...
Why all the Active Record hate? [closed]
As I learn more and more about OOP, and start to implement various design patterns, I keep coming back to cases where people are hating on Active Record .
...
Execution of Python code with -m option or not
...
When you use the -m command-line flag, Python will import a module or package for you, then run it as a script. When you don't use the -m flag, the file you named is run as just a script.
The distinction is important when you try to run a package. T...
Java packages com and org
What are the meaning of the packages org and com in Java?
4 Answers
4
...
