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Meaning of numbers in “col-md-4”,“ col-xs-1”, “col-lg-2” in Bootstrap
...sm, md, lg) for now, I'll start with just the numbers...
the numbers (1-12) represent a portion of the total width of any div
all divs are divided into 12 columns
so, col-*-6 spans 6 of 12 columns (half the width), col-*-12 spans 12 of 12 columns (the entire width), etc
So, if you want two equal...
How to format numbers by prepending 0 to single-digit numbers?
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What is the most pythonic way to check if an object is a number?
...ber from the numbers module to test isinstance(n, Number) (available since 2.6).
>>> from numbers import Number
... from decimal import Decimal
... from fractions import Fraction
... for n in [2, 2.0, Decimal('2.0'), complex(2, 0), Fraction(2, 1), '2']:
... print(f'{n!r:>14} {isinst...
How to change the order of DataFrame columns?
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Why do people say there is modulo bias when using a random number generator?
...Now what happens if you want to generate a random number between say 0 and 2? For the sake of explanation, let's say RAND_MAX is 10 and I decide to generate a random number between 0 and 2 by calling rand()%3. However, rand()%3 does not produce the numbers between 0 and 2 with equal probability!
W...
Why are floating point numbers inaccurate?
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In most programming languages, floating point numbers are represented a lot like scientific no...
Detect the specific iPhone/iPod touch model [duplicate]
...-to-peer bluetooth capabilities of the iPhone (and probably the iPod touch 2nd generation). However, to stop the users from trying to play a multiplayer on an iPod 1st gen and iPhone 2G I need to check for the specific device model.
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How to change the indentation width in emacs javascript mode
I'd like to use 2 spaces for my indents instead of 4. I can change the default behavior of C mode using:
9 Answers
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How to add an empty column to a dataframe?
...p
>>> import pandas as pd
>>> df = pd.DataFrame({"A": [1,2,3], "B": [2,3,4]})
>>> df
A B
0 1 2
1 2 3
2 3 4
>>> df["C"] = ""
>>> df["D"] = np.nan
>>> df
A B C D
0 1 2 NaN
1 2 3 NaN
2 3 4 NaN
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NTFS performance and large volumes of files and directories
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Here's some advice from someone with an environment where we have folders containing tens of m...