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Making a Location object in Android with latitude and longitude values
...th you current location.
Location targetLocation = new Location("");//provider name is unnecessary
targetLocation.setLatitude(0.0d);//your coords of course
targetLocation.setLongitude(0.0d);
float distanceInMeters = targetLocation.distanceTo(myLocation);
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Creating a new column based on if-elif-else condition
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To formalize some of the approaches laid out above:
Create a function that operates on the rows of your dataframe like so:
def f(row):
if row['A'] == row['B']:
val = 0
elif row['A'] > row['B']:
val = 1
else:
val = -1
r...
How do I reset a sequence in Oracle?
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Just be aware that the drop will invalidate any objects that depend on that sequence and they will have to be recompiled.
– Doug Porter
Dec 23 '11 at 18:57
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What's a standard way to do a no-op in python?
...compound_stmts.html) – like e.g. as a sub-expression to an existing code idiom like a comprehension, or a lambda, or (god forbid) a string to be passed into eval(…) (which q.v. docs.python.org/3/library/functions.html#eval if you must).
– fish2000
Apr 23 '1...
Python non-greedy regexes
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As the others have said using the ? modifier on the * quantifier will solve your immediate problem, but be careful, you are starting to stray into areas where regexes stop working and you need a parser instead. For instance, the string "(foo (ba...
Replace a newline in TSQL
...uld like to replace (or remove) a newline character in a TSQL-string.
Any Ideas?
12 Answers
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:after vs. ::after
...Teoharov Specifically, you can use :after and ::after interchangeably with identical behaviour with the exception of IE8 which, as the question notes, requires the single colon.
– Dominic
Jul 31 '18 at 0:42
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Rails migrations: self.up and self.down versus change
... rollback? It's not possible, so you need to define the down method.
As said, I suggest you to read the Rails Migrations Guide.
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Nginx not picking up site in sites-enabled?
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I had the same problem. It was because I had accidentally used a relative path with the symbolic link.
Are you sure you used full paths, e.g.:
ln -s /etc/nginx/sites-available/example.com.conf /etc/nginx/sites-enabled/example.com.conf
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Should I use encoding declaration in Python 3?
...hen you deviate from the default, or if you rely on other tools (like your IDE or text editor) to make use of that information.
In other words, as far as Python is concerned, only when you want to use an encoding that differs do you have to use that declaration.
Other tools, such as your editor, c...