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What are the uses of the exec command in shell scripts? [closed]
...ust to save processes. If we call prog1 -> prog2 -> prog3 -> prog4 etc. and never go back, then make each call an exec. It saves resources (not much, admittedly, unless repeated) and makes shutdown simplier.
You have obviously seen exec used somewhere, perhaps if you showed the code tha...
In Functional Programming, what is a functor?
... opposed to the layers existing only in the mind of the programmer. In 1994 when this work was published, it was a big deal.
For a wild example of ML functors in action, you could see the paper ML Module Mania, which contains a publishable (i.e., scary) example of functors at work. For a brillian...
Listening for variable changes in JavaScript
...ll be fired. Running the following line will bring the alert popup:
x.a = 42;
See an example here: https://jsfiddle.net/5o1wf1bn/1/
You can also user an array of listeners instead of a single listener slot, but I wanted to give you the simplest possible example.
...
Chrome DevTools Devices does not detect device when plugged in
...not seem to get the DevTools Devices feature to work on my Samsung Galaxy S4 even after following the steps outlined at https://developers.google.com/chrome-developer-tools/docs/remote-debugging
...
python pandas: Remove duplicates by columns A, keeping the row with the highest value in column B
...drop_duplicates(subset='A', keep="last")
Out[10]:
A B
1 1 20
3 2 40
4 3 10
You can do also something like:
In [12]: df.groupby('A', group_keys=False).apply(lambda x: x.loc[x.B.idxmax()])
Out[12]:
A B
A
1 1 20
2 2 40
3 3 10
...
How to check if running in Cygwin, Mac or Linux?
...
334
Usually, uname with its various options will tell you what environment you're running in:
pax&g...
How to wrap text in LaTeX tables?
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answered Apr 26 '09 at 14:32
moinudinmoinudin
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Is there a setting on Google Analytics to suppress use of cookies for users who have not yet given c
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answered May 23 '12 at 13:41
YahelYahel
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Difference between const & const volatile
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141
An object marked as const volatile will not be permitted to be changed by the code (an error wi...
Unable to find valid certification path to requested target - error even after cert imported
... yegor256
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answered Feb 9 '12 at 12:16
Dirk-Willem van GulikDirk-Willem van Gulik
...