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Why use the yield keyword, when I could just use an ordinary IEnumerable?

...fering more than a single item at a time. If you only need the first value from the returned sequence, for example, why would you want to copy everything into a new list? As another example, you can easily create an infinite stream using iterator blocks. For example, here's a sequence of random num...
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Verifying that a string contains only letters in C#

... Just to save people like me from one more search, Regex is in the System.Text.RegularExpressions Namespace – Eric Barr Mar 19 '14 at 13:51 ...
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How to activate virtualenv?

...irst few times as well, easy to think that manual is telling "execute this from root of the environment folder". No need to make activate executable via chmod. share | improve this answer ...
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Redefine tab as 4 spaces

.... In practice, you probably want your tab character width to be different from the width of your indents, in order to reduce the chance of tab characters masquerading as proper indents. (list + expandtab can help here too) Also, 8-char-wide tabs is "the standard" -- your terminal, Python, and many ...
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Calling a method every x minutes

... var startTimeSpan = TimeSpan.Zero; var periodTimeSpan = TimeSpan.FromMinutes(5); var timer = new System.Threading.Timer((e) => { MyMethod(); }, null, startTimeSpan, periodTimeSpan); share | ...
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HTML table headers always visible at top of window when viewing a large table

... having an issue with header width. The data in the rows are values pulled from a db, as such are a random length. Before you scroll, the headers are in their auto-inherited size, but once you scroll, it resizes the headers to wrap around the header names, and thus are a much smaller width so the h...
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Configure apache to listen on port other than 80

...mpp, Appserv. All I have done is compiling apache, tomcat and jk connector from source and trying my best to make them work together. – vivek.m Oct 15 '10 at 11:06 ...
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How to overload the operator++ in two different ways for postfix a++ and prefix ++a?

... @Eric: You have it correct all the way through apart from a sentence in the middle where you mix. Its prefix that is better. – Martin York Oct 2 '10 at 19:10 ...
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Difference between Static and final?

...od can call only other static methods and can not call a non-static method from it unless it has/creates an instance of the class. A static method can be accessed directly by the class name and doesn’t need any object. Syntax: Class.methodName() A static method cannot refer to this or super ke...
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Is it possible to include a file in your .gitconfig

... See Mike Morearty's answer: Includes You can include one config file from another by setting the special include.path variable to the name of the file to be included. The included file is expanded immediately, as if its contents had been found at the location of the include directive. If t...