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string.ToLower() and string.ToLowerInvariant()
What's the difference and when to use what? What's the risk if I always use ToLower() and what's the risk if I always use ToLowerInvariant() ?
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what is .netrwhist?
When I edit files in my ~/.vim , the .netrwhist file would mysteriously be changed, too.
4 Answers
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Regex expressions in Java, \\s vs. \\s+
What's the difference between the following two expressions?
4 Answers
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Static table view outside UITableViewController
After the new Xcode update, my app doesn't validate and shows this error:
4 Answers
4
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Find which commit is currently checked out in Git
I'm in the middle of a git bisect session.
5 Answers
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When should I use Kruskal as opposed to Prim (and vice versa)?
I was wondering when one should use Prim's algorithm and when Kruskal's to find the minimum spanning tree? They both have easy logics, same worst cases, and only difference is implementation which might involve a bit different data structures. So what is the deciding factor?
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How do I update if exists, insert if not (AKA “upsert” or “merge”) in MySQL?
Is there an easy way to INSERT a row when it does not exist, or to UPDATE if it exists, using one MySQL query?
2 Answer...
Append TimeStamp to a File Name
I have come across this problem several times in which I would like to have multiple versions of the same file in the same directory. The way I have been doing it using C# is by adding a time stamp to the file name with something like this DateTime.Now.ToString().Replace('/', '-').Replace(':', '.')...
How does View Controller Containment work in iOS 5?
In WWDC 2011 Session 102, Apple introduced View Controller Containment, which is the ability to create custom view controller containers, analogous to UITabBarController , UINavigationController , and the like.
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How to delete (not cut) in Vim?
How can I delete a line without putting it into my default buffer?
6 Answers
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