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Mercurial: how to amend the last commit?

...1 undo the last (1) commit(s), so you can do it again (see this answer for more information). Using the MQ extension, which is shipped with Mercurial Even if it isn't shipped with Mercurial, the Histedit extension is worth mentioning You can also have a look on the Editing History page of the Mer...
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Java Equivalent of C# async/await?

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Why does C# have break if it's not optional? [duplicate]

... Basically to make it more familiar to C/C++/Java developers. Personally I think it was a mistake, but that's the reasoning. I would have preferred a forced block: case '1': { } Aside from anything else, that would have avoided the weird varia...
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Creating a copy of an object in C# [duplicate]

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In C/C++ what's the simplest way to reverse the order of bits in a byte?

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defaultdict of defaultdict?

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MySQL - UPDATE query based on SELECT Query

... The first form (update with join) is going to be a lot more efficient than the second. The first would do a single join, whereas the second would execute the select query for every row of tableA. – ColinM Nov 8 '12 at 17:54 ...
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append to url and refresh page

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What is the difference between the Data Mapper, Table Data Gateway (Gateway), Data Access Object (DA

...sulting implementation. A Repository "acts like a collection, except with more elaborate querying capability" [Evans, Domain Driven Design] and may be considered as an "objects in memory facade" (Repository discussion) A DataMapper "moves data between objects and a database while keeping them inde...
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Different ways of adding to Dictionary

...ource as such, just off the top of my head, but i don't think there's much more to it, than mentioned in the other comments. If i remember correctly, Add simply uses the indexer, but checks first to see if the Key is already in use. – hhravn Dec 3 '09 at 10:33 ...