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LINQ's Distinct() on a particular property

...m and pick a winner out of the group. List<Person> distinctPeople = allPeople .GroupBy(p => p.PersonId) .Select(g => g.First()) .ToList(); If you want to define groups on multiple properties, here's how: List<Person> distinctPeople = allPeople .GroupBy(p => new {p.Pe...
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How to check if IEnumerable is null or empty?

... love string.IsNullOrEmpty method. I'd love to have something that would allow the same functionality for IEnumerable. Is there such? Maybe some collection helper class? The reason I am asking is that in if statements the code looks cluttered if the patter is (mylist != null && mylist.A...
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try {} without catch {} possible in JavaScript?

...ns which either return something or throw an error. In a main function, I call each of these, and would like to return the value returned by each function, or go on to the second function if the first functions throws an error. ...
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Edit a commit message in SourceTree Windows (already pushed to remote)

...d. However, the current 1.5.2.0 version of SourceTree for Windows does not allow you to force-push through the GUI, so you'll need to use Git from the command line anyways in order to do that. Click Terminal from the GUI to open up a terminal. Step 7 From the terminal force-push with the follow...
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VS 2012: Scroll Solution Explorer to current file

VS2010 had the feature that viewing a file would automatically cause Solution Explorer to scroll to that file. 8 Answers ...
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Pointers in C: when to use the ampersand and the asterisk?

... work differently when you're working with arrays, strings or when you're calling functions with a pointer copy of a variable. It's difficult to see a pattern of logic inside all of this. ...
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Passing ssh options to git clone

...D takes precedence over $GIT_SSH, and is interpreted by the shell, which allows additional arguments to be included. share | improve this answer | follow ...
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How to indent a few lines in Markdown markup?

I want to write a few lines of text. They should be formatted normally except each line should start at the 6th column. I.e. I don't want the code block formatting rule to make this chunk of text look like code as I'll use other formatting like bold face, etc. How to do that in Markdown? ...
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Which parts of Real World Haskell are now obsolete or considered bad practice?

...move return from Monad, so the Monad instance in Real World Haskell will really be out of sync with the real world. That being said, it's still a useful resource for general guidelines. But keep in mind that many libraries changed since its release. Something you can read along while reading RWH i...
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How to change the remote a branch is tracking?

...my bad. I'd still do it via config, because you can be sure to not accidentally change the branch name, but all good. +1. – Cascabel Feb 4 '11 at 8:23 ...