大约有 41,000 项符合查询结果（耗时：0.0565秒） [XML]
How to permanently set $PATH on Linux/Unix? [closed]
I'm trying to add a directory to my path so it will always be in my Linux path. I've tried:
24 Answers
...
Difference between static and shared libraries?
...
Shared libraries are .so (or in Windows .dll, or in OS X .dylib) files. All the code relating to the library is in this file, and it is referenced by programs using it at run-time. A program using a shared library only makes reference to the code that...
What is a faster alternative to Python's http.server (or SimpleHTTPServer)?
Python's http.server (or SimpleHTTPServer for Python 2) is a great way of serve the contents of the current directory from the command line:
...
Java naming convention for static final variables [duplicate]
...
That's still a constant. See the JLS for more information regarding the naming convention for constants. But in reality, it's all a matter of preference.
The names of constants in interface types should be, and final
variables of class types may conventio...
angular.element vs document.getElementById or jQuery selector with spin (busy) control
... documented here: http://blog.xvitcoder.com/adding-a-weel-progress-indicator-to-your-angularjs-application/
10 Answers
...
Using a strategy pattern and a command pattern
Both design patterns encapsulate an algorithm and decouple implementation details from their calling classes. The only difference I can discern is that the Strategy pattern takes in parameters for execution, while the Command pattern doesn't.
...
Is jquery a javascript library or framework? [closed]
Here, jquery is mentioned under framework category:
http://en.wikipedia.org/wiki/Comparison_of_JavaScript_frameworks
7 Ans...
What are the differences between Perl, Python, AWK and sed? [closed]
...
In order of appearance, the languages are sed, awk, perl, python.
The sed program is a stream editor and is designed to apply the actions from a script to each line (or, more generally, to specified ranges of lines) of the inpu...
How using try catch for exception handling is best practice
...e maintaining my colleague's code from even someone who claims to be a senior developer, I often see the following code:
15...
How to check for an undefined or null variable in JavaScript?
...
You have to differentiate between cases:
Variables can be undefined or undeclared. You'll get an error if you access an undeclared variable in any context other than typeof.
if(typeof someUndeclaredVar == whatever) // works
if(someUndeclaredVar) // throws error
A variable that has been de...