大约有 11,000 项符合查询结果（耗时：0.0345秒） [XML]
When is each sorting algorithm used? [closed]
What are the use cases when a particular sorting algorithm is preferred over others - merge sort vs QuickSort vs heapsort vs 'intro sort', etc?
...
Why should I use 'li' instead of 'div'?
I'm not sure why I need to use ul-li vs simply using divs when listing items. I can make both look exactly the same so where is the functional advantage to creating an unordered list vs lining up divs?
...
When is a language considered a scripting language? [closed]
What makes a language a scripting language? I've heard some people say "when it gets interpreted instead of compiled". That would make PHP (for example) a scripting language. Is that the only criterion? Or are there other criteria?
...
What is a good regular expression to match a URL? [duplicate]
Currently I have an input box which will detect the URL and parse the data.
6 Answers
...
Can you supply arguments to the map(&:method) syntax in Ruby?
You're probably familiar with the following Ruby shorthand ( a is an array):
7 Answers
...
Search and replace a line in a file in Python
I want to loop over the contents of a text file and do a search and replace on some lines and write the result back to the file. I could first load the whole file in memory and then write it back, but that probably is not the best way to do it.
...
How do PHP sessions work? (not “how are they used?”)
...{session_id} . I have been looking at the contents and cannot figure out how they really work.
4 Answers
...
Scope of sessionStorage and localStorage
...e documentation on sessionStorage and localStorage, but I don't understand what the scope is: the domain, a specific page?
...
How to implement a unique index on two columns in rails
I have a table and I'm trying to add a unique index on two columns. Those columns are also indexed. So my question is if I just can remove the indexes who were just for one column or if I have to use all three indexes:
...
How do I tell git-svn about a remote branch created after I fetched the repo?
I'm using git-svn to work against my company's central Subversion repository. We've recently created a new feature branch in the central repo.
...