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Why are there two ways to unstage a file in Git?

... git rm --cached <filePath> does not unstage a file, it actually stages the removal of the file(s) from the repo (assuming it was already committed before) but leaves the file in your working tree (leaving you with an untracked file). git reset -- <filePath> will unstage any st...
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Forms authentication timeout vs sessionState timeout

...nger be authenticated—they will be redirected to the login page automatically. The slidingExpiration=true value is basically saying that as long as the user makes a request within the timeout value, they will continue to be authenticated (more details here). If you set slidingExpiration=false the ...
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Changing the color of the axis, ticks and labels for a plot in matplotlib

... As a quick example (using a slightly cleaner method than the potentially duplicate question): import matplotlib.pyplot as plt fig = plt.figure() ax = fig.add_subplot(111) ax.plot(range(10)) ax.set_xlabel('X-axis') ax.set_ylabel('Y-axis') ax.spines['bottom'].set_color('red') ax.spines['top...
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Why does Math.floor return a double?

...he value with its fractional part truncated. It may well be quite a bit smaller than that. – Jim Garrison Sep 5 '16 at 20:10 add a comment  |  ...
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How large should my recv buffer be when calling recv in the socket library

...w how big to make the buffer passed to recv()? SOCK_STREAM: It doesn't really matter too much. If your protocol is a transactional / interactive one just pick a size that can hold the largest individual message / command you would reasonably expect (3000 is likely fine). If your protocol is tran...
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UIView frame, bounds and center

...ed on Stanford CS193p course. Credits goes to @Rhubarb. Using the frame allows you to reposition and/or resize a view within its superview. Usually can be used from a superview, for example, when you create a specific subview. For example: // view1 will be positioned at x = 30, y = 20 starting t...
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Is AsyncTask really conceptually flawed or am I just missing something?

...p with different solutions to it, which I am not happy with since they are all massive hacks. I still cannot believe that a class that flawed in design made it into the framework and no-one is talking about it, so I guess I just must be missing something. ...
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Android phone orientation overview including compass

... Roll is a function of gravity, a 90 degree roll puts all of gravity into the x register. Pitch is the same, a 90 degree pitch up puts all of the component of gravity into the y register. Yaw / Heading / azimuth has no effect on gravity, it is ALWAYS at right angles to gravity...
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Why is LINQ JOIN so much faster than linking with WHERE?

...ite efficient because the DB knows how to perform a join. But it doesn't really make sense to compare it with the other approaches, since they work directly in memory (Linq to DataSet) The query with multiple tables and a Where condition actually performs a cartesian product of all the tables, then ...
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Finding duplicates in O(n) time and O(1) space

... This is amazing! I've seen a number of variants on this question, usually more constrained, and this is the most general way to solve it that I've seen. I'll simply mention that changing the print statement to print i turns this into a solution to stackoverflow.com/questions/5249985/… and (...