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How can I output leading zeros in Ruby?
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If the maximum number of digits in the counter is known (e.g., n = 3 for counters 1..876), you can do
str = "file_" + i.to_s.rjust(n, "0")
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RSpec: how to test if a method was called?
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edited May 18 '15 at 15:13
answered Jan 21 '14 at 16:01
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Replace None with NaN in pandas dataframe
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edited Aug 3 at 12:14
answered May 19 '14 at 17:18
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Argparse optional positional arguments?
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Django DB Settings 'Improperly Configured' Error
... is workin' fine for me, but when I fire up the Python interpreter (Python 3) to check some things, I get the weirdest error when I try importing - from django.contrib.auth.models import User -
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With MySQL, how can I generate a column containing the record index in a table?
...SERT INTO league_girl VALUES (2, 'b', 25);
INSERT INTO league_girl VALUES (3, 'c', 75);
INSERT INTO league_girl VALUES (4, 'd', 25);
INSERT INTO league_girl VALUES (5, 'e', 55);
INSERT INTO league_girl VALUES (6, 'f', 80);
INSERT INTO league_girl VALUES (7, 'g', 15);
Test query:
SELECT l.positio...
Does MS SQL Server's “between” include the range boundaries?
...llowing day's data at midnight in multiple ranges, your end date should be 3 milliseconds before midnight on of day following your to date. 3 milliseconds because any less than this and the value will be rounded up to midnight the next day.
e.g. to get all values within June 2016 you'd need to run...
How to convert ActiveRecord results into an array of hashes
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How to use android emulator for testing bluetooth application?
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You can't. The emulator does not support Bluetooth, as mentioned in the SDK's docs and several ...