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How do I use Node.js Crypto to create a HMAC-SHA1 hash?
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A few years ago it was said that update() and digest() were legacy methods and the new streamin...
How do I undo 'git add' before commit?
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98
Of course, this is not a true undo, because if the wrong git add overwrote a previous staged uncommited version, we can't recover it. I tri...
What's the difference between HEAD^ and HEAD~ in Git?
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Querying the non-existent fourth parent results in an error.
$ git rev-parse 89e4fcb0dd^4
89e4fcb0dd^4
fatal: ambiguous argument '89e4fcb0dd^4': unknown revision or path not in the working tree.
Use '-...
Retrieve specific commit from a remote Git repository
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VonCVonC
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bool operator ++ and --
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With the old standards (C++98) it is not an error.
With the new standards incrementing a boolean is deprecated. (C++11)
You can use incrementation on a boolean until C++17.
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Flask-SQLalchemy update a row's information
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There is a method update on BaseQuery object in SQLAlchemy, which is returned by filter_by.
a...
How to automatically generate N “distinct” colors?
... vivid_red=(193, 0, 32),
grayish_yellow=(206, 162, 98),
medium_gray=(129, 112, 102),
# these aren't good for people with defective color vision:
vivid_green=(0, 125, 52),
strong_purplish_pink=(24...
Accessing last x characters of a string in Bash
...iourf_gniourf
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Evenly space multiple views within a container view
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Very quick Interface Builder solution:
For any number of views to be evenly spaced within a su...
How can mixed data types (int, float, char, etc) be stored in an array?
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Mark Amery
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answered Sep 2 '13 at 16:31
BarmarBarma...