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Checkout old commit and make it a new commit [duplicate]
...ected), git checkout <commit-hash> . should checkout . (all changes) from the commit to your working-tree, which you can apply as a new commit. You can also detach HEAD and branch off that commit. It should then be at HEAD for the new branch and you can commit there. The . is important.
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Check if a value is an object in JavaScript
...er all there's no recipe at all!) for checking whether it's an object, far from it. Since people tend to look for something to copy from here without doing any research, I'd highly recommend that they turn to the other, most upvoted (and correct!) answer.
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Rename a git submodule
...tree but also updating the "submodule.<submodule name>.path" setting from the .gitmodules file and stage both.
This doesn't happen when no .gitmodules file is found and only issues a warning when it doesn't have a section for this submodule. This is because the user might just use plain gitl...
What's the difference between Task.Start/Wait and Async/Await?
... difference between doing Task.Wait and await task?
You order your lunch from the waiter at the restaurant. A moment after giving your order, a friend walks in and sits down next to you and starts a conversation. Now you have two choices. You can ignore your friend until the task is complete -- yo...
Sort a list of tuples by 2nd item (integer value) [duplicate]
...hould be a function that identifies how to retrieve the comparable element from your data structure. In your case, it is the second element of the tuple, so we access [1].
For optimization, see jamylak's response using itemgetter(1), which is essentially a faster version of lambda x: x[1].
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What's the absurd function in Data.Void useful for?
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this is a strict-ified and simplified version of the standard pipes type from Gabriel Gonzales' Pipes library. Now, we can encode a pipe that never yields (ie, a consumer) as
type Consumer a r = Pipe a Void r
this really never yields. The implication of this is that the proper fold rule for a...
Executing Batch File in C#
...ized as an internal or external command, program or batchfile" (Translated from dutch) Which is odd. Because when i run txtmanipulator from the commandline it executes perfectly.
– Wessel T.
Apr 1 '11 at 22:42
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Are +0 and -0 the same?
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JavaScript uses IEEE 754 standard to represent numbers. From Wikipedia:
Signed zero is zero with an associated sign. In ordinary arithmetic, −0 = +0 = 0. However, in computing, some number representations allow for the existence of two zeros, often denoted by −0 (negative ...
Can dplyr package be used for conditional mutating?
...mark might not be quite fair - in addition to not receiving the same input from the 2nd iteration forward (which might affect timing since DT$g is already allocated?), the result also propagates back to ans1 and therefore might (if R's optimizer deems it necessary? Not sure on this...) avoid another...
How do I create a file and write to it in Java?
...and often is) used, but is not (conceptually) the right class for the job. From the docs: "PrintWriter prints formatted representations of objects to a text-output stream. " Bozho's answer is more correct, though it looks cumbersome (you can always wrap it in some utility method).
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