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How to compare two dates?
...> from datetime import datetime, timedelta
>>> past = datetime.now() - timedelta(days=1)
>>> present = datetime.now()
>>> past < present
True
>>> datetime(3000, 1, 1) < present
False
>>> present - datetime(2000, 4, 4)
datetime.timedelta(4242, 757...
Number of days between two dates in Joda-Time
...
You should now use .withTimeAtStartOfDay() instead of .toDateMidnight()
– bgolson
Oct 29 '13 at 16:54
2
...
Convert to/from DateTime and Time in Ruby
...ew_offset, :gm)
end
def to_local_time
to_time(new_offset(DateTime.now.offset-offset), :local)
end
private
def to_time(dest, method)
#Convert a fraction of a day to a number of microseconds
usec = (dest.sec_fraction * 60 * 60 * 24 * (10**6)).to_i
Time.send(method, dest.yea...
In absence of preprocessor macros, is there a way to define practical scheme specific flags at proje
.... Here's an example:
#if DEBUG
let a = 2
#else
let a = 3
#endif
Now, you must set the "DEBUG" symbol elsewhere, though. Set it in the "Swift Compiler - Custom Flags" section, "Other Swift Flags" line. You add the DEBUG symbol with the -D DEBUG entry.
(Build Settings -> Swift Compiler ...
Disabling Chrome Autofill
...
This is the only working fix now. False, and off, do not work anymore. Should be the correct answer now.
– David
Aug 7 '15 at 2:02
5
...
Replace duplicate spaces with a single space in T-SQL
...a moment to figure out you you used the '><','' No space replace but now that I get it... it is very brilliant. I did very much like @richardtallent suggestion of using the non-printable ASCII characters the added combination of which produces: REPLACE(REPLACE(REPLACE(LastName,' ','CHAR(17)CHA...
JSON datetime between Python and JavaScript
...ime.datetime, datetime.date))
else None
)
json.dumps(datetime.datetime.now(), default=date_handler)
'"2010-04-20T20:08:21.634121"'
Which is ISO 8601 format.
A more comprehensive default handler function:
def handler(obj):
if hasattr(obj, 'isoformat'):
return obj.isoformat()
...
How to empty a Heroku database
...e, if you are using SHARED_DATABASE_URL:
$ heroku pg:reset DATABASE_URL
Now to recreate the database with nothing in it:
$ heroku run rake db:migrate
To populate the database with your seed data:
$ heroku run rake db:seed
---OR---
You can combine the last two (migrate & seed) into on...
parseInt vs unary plus, when to use which?
...er for a more complete set of cases
Well, here are a few differences I know of:
An empty string "" evaluates to a 0, while parseInt evaluates it to NaN. IMO, a blank string should be a NaN.
+'' === 0; //true
isNaN(parseInt('',10)); //true
The unary + acts more like parseFloat ...
Difference between 2 dates in SQLite
...
SELECT julianday('now') - julianday(DateCreated) FROM Payment;
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