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Days between two dates? [duplicate]
...est for calendar checks.
from datetime import timedelta, datetime
def cal_days_diff(a,b):
A = a.replace(hour = 0, minute = 0, second = 0, microsecond = 0)
B = b.replace(hour = 0, minute = 0, second = 0, microsecond = 0)
return (A - B).days
if __name__ == '__main__':
x = datetime...
Best practice for instantiating a new Android Fragment
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If Android decides to recreate your Fragment later, it's going to call the no-argument constructor of your fragment. So overloading the constructor is not a solution.
With that being said, the way to pass stuff to your Fragment so that they are available after a Fragment is recreated by And...
private[this] vs private
...rotected over public doesn't apply.
Use private[this] where performance really matters (since you'll get direct field access instead of methods this way). Otherwise, just settle on one style so people don't need to figure out why this property is private and that one is private[this].
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How to keep a .NET console app running?
... a Console application that starts up some services in a separate thread. All it needs to do is wait for the user to press Ctrl+C to shut it down.
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Javascript - removing undefined fields from an object [duplicate]
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You actually don't even need the ternary operator. Instead you can do (obj[key]===undefined&& delete obj[key]) The reason this works is because and uses short-circuit evaluation, so once the first check fails the second isn'...
Select by partial string from a pandas DataFrame
...egex search is not required, so specify regex=False to disable it.
#select all rows containing "foo"
df1[df1['col'].str.contains('foo', regex=False)]
# same as df1[df1['col'].str.contains('foo')] but faster.
col
0 foo
1 foobar
Performance wise, regex search is slower than substring s...
How to do a PUT request with curl?
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"man curl" on -X: "Normally you don't need this option. All sorts of GET, HEAD, POST and PUT requests are rather invoked by using dedicated command line options." But I couldn't find another way.
– Martin C. Martin
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How to measure time taken by a function to execute
...ction you're measuring time for
var t1 = performance.now()
console.log("Call to doSomething took " + (t1 - t0) + " milliseconds.")
NodeJs: it is required to import the performance class
Using console.time: (non-standard) (living standard)
console.time('someFunction')
someFunction() // W...
How do you create a daemon in Python?
...Sander Marechal's code sample is superior to the original, which was originally posted in 2004. I once contributed a daemonizer for Pyro, but would probably use Sander's code if I had to do it over.
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Strip html from string Ruby on Rails
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Yes, call this: sanitize(html_string, tags:[])
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