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Difference between $.ajax() and $.get() and $.load()
...
$.ajax() is the most configurable one, where you get fine grained control over HTTP headers and such. You're also able to get direct access to the XHR-object using this method. Slightly more fine-grained error-handling is also provided. Can therefore be more ...
Hiding user input on terminal in Linux script
...en
echo
break
else
echo -n '*'
password+=$pass
fi
done
Without being fancy
echo "Please enter your username";
read username;
echo "Please enter your password";
stty -echo
read password;
stty echo
s...
Identifying the dependency relationship for python packages installed with pip
...dencies. This way you'll have a much nicer time the day you need to remove one of them :)
Note the following:
You can have a clean requirements.raw with version control to rebuild your full requirements.txt.
Beware of git urls being replaced by egg names in the process.
The dependencies of your d...
How to delete multiple values from a vector?
...(This does not distinguish NA from NaN but the R manual anyways warns that one should not rely on having a difference between them)
For Inf/ -Inf you'll have to check both sign and is.finite
share
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How do you effectively model inheritance in a database?
...performance gains in some cases this is entirely due to an incomplete (or nonexistent) separation between the logical and physical structure of data in the DBMS. Unfortunately the majority of commercial DBMS suffer from this problem. @PerformanceDBA is correct. Undernormalization is a judgement erro...
How can I ensure that a division of integers is always rounded up?
...swer right the first time - is to approach the problem carefully, solve it one step at a time, and use good engineering principles in doing so.
Start by reading the specification for what you're trying to replace. The specification for integer division clearly states:
The division rounds the resu...
“PKIX path building failed” and “unable to find valid certification path to requested target”
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For anyone getting an "access denied" error, make sure you're running command prompt as an administrator.
– Walker Christie
Apr 24 '18 at 15:49
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How do I make a batch file terminate upon encountering an error?
...over with different parameters. How do I make it terminate immediately if one of the calls returns an error code of any level?
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A migration to add unique constraint to a combination of columns
...fme.com, "There are 46,427 people named John Smith" in the United States alone. That's about 127 years of days. As this is well over the average lifespan of a human being, this means that a DOB clash is mathematically certain.
All I'm saying is that that particular combination of unique fields cou...
Making git auto-commit
...wer is great, but it isn't quite a complete solution. As written, it is a one shot commit for a one time change in a file. It does not work for the common case where editing a file creates a new inode with the original name. inotifywait -m apparently follows files by inode, not by name. Also, aft...