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Is there a difference between foreach and map?
...important point to mention (this is particularly true in Scala) is that a call to map does not result in the execution of its underlying logic until when the expected transformed list is summoned. In contrast, foreach's operation is computed immediately.
– solimant
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Simple Pivot Table to Count Unique Values
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UPDATE: You can do this now automatically with Excel 2013. I've created this as a new answer because my previous answer actually solves a slightly different problem.
If you have that version, then select your data to create a pivot table, and when you create yo...
What specific productivity gains do Vim/Emacs provide over GUI text editors?
...few keypresses that someone would've otherwise spent ten minutes doing manually.
Multiple copy/paste registers. When you only have one, you end up going through strange contortions to avoid clobbering the clipboard. You shouldn't have to.
Vim's undo/redo system is unbeatable. Type something, undo...
Twitter Bootstrap 3.0 how do I “badge badge-important” now
... same. But in the CSS, label uses em so it scales nicely, and it still has all the "-color" classes. So the label will scale to bigger font sizes better, and can be colored with label-success, label-warning, etc. Here are two examples:
<span class="label label-success label-as-badge">Yay! Rah...
How do I write a Firefox Addon? [closed]
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We tried to make http://developer.mozilla.org/en/Extensions answer all those questions. The first three links in the documentation section are about getting started (that includes Adam's link). The newsgroup and the irc channel in the Community section are the official discussion boards.
Mo...
How can I add (simple) tracing in C#? [closed]
...roduce some tracing to a C# application I am writing. Sadly, I can never really remember how it works and would like a tutorial with reference qualities to check up on every now and then. It should include:
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SQL to LINQ Tool [closed]
...elete this accepted answer. It used to be good, but now it isn't. Beware really old posts, guys. I'm removing the link.
[Linqer] is a SQL to LINQ converter tool. It helps you to learn LINQ and convert your existing SQL statements.
Not every SQL statement can be converted to LINQ, but Linqer covers m...
How to get a path to the desktop for current user in C#?
...ronment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData); // All User's Application Data
Environment.GetFolderPath(Environment.SpecialFolder.CommonProgramFiles); // Program Files
Environment.GetFolderPath(Environment.SpecialFolder.Cookies); // Internet Cookie
Environment.GetFolderPath(...
What's the regular expression that matches a square bracket?
...hat matches a square bracket [ . I haven't found one yet. I think I tried all possibilities, but haven't found the right one. What is a valid regex for this?
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regular expression: match any word until first space
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while generally correct, I think the need for ^ depends on particular language implementations or regexp. for example in Python you'd use re.match for this task.
– SilentGhost
Sep 9 '09 at 15:51
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