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matplotlib does not show my drawings although I call pyplot.show()
Help required on matplotlib. Yes, I did not forget calling the pyplot.show().
14 Answers
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How do I undo the most recent local commits in Git?
I accidentally committed the wrong files to Git , but I haven't pushed the commit to the server yet.
86 Answers
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Possible to do a MySQL foreign key to one of two possible tables?
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What you're describing is called Polymorphic Associations. That is, the "foreign key" column contains an id value that must exist in one of a set of target tables. Typically the target tables are related in some way, such as being instances of some c...
Random number from a range in a Bash Script
... Also, it's probably fine for this use, but I believe shuf does actually permute the entire input. This makes it a bad choice if you're generating the random numbers very frequently.
– Cascabel
Mar 31 '10 at 20:42
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UINavigationBar Hide back Button Text
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You can check out my very simple solution for hiding all back buttons through out the app. P.S.: Requires zero line of code of your own
– Pratik Jamariya
Sep 20 '17 at 18:44
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Hiding the scroll bar on an HTML page
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Actually, this is not completely the right answer : overflow:hidden doesn't "hide" the scrollbar. It also stop scrolling feature on the page. That's not exactly what we ask for.
– adriendenat
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When to use Vanilla JavaScript vs. jQuery?
... there are certain practices using javascript, instead of jQuery, that actually enable you to write less and do ... well the same amount. And may also yield performance benefits.
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Bomb dropping algorithm
...to bomb the hollow rectangle of
squares just inside the perimeter. I'll call the perimeter layer 1, and the rectangle inside it layer 2.
An important insight is that there is no point bombing layer 1, because the
"blast radius" you get from doing so is always contained within the blast radius of...
What algorithm gives suggestions in a spell checker?
What algorithm is typically used when implementing a spell checker that is accompanied with word suggestions?
5 Answers
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“cannot resolve symbol R” in Android Studio
In every instance in all of my classes where I reference R.id.something , the R is in red and it says "cannot resolve symbol R". Also every time there is R.layout.something it is underlined in red and says "cannot resolve method setContentView(?)". The project always builds fine. It is annoyin...