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Grid of responsive squares
...t you can code :
HTML :
<div></div>
CSS
div {
width: 30%;
padding-bottom: 30%; /* = width for a square aspect ratio */
}
Here is a simple layout example of 3*3 squares grid using the code above.
With this technique, you can make any other aspect ratio, here is a table gi...
How to iterate through two lists in parallel?
...
1437
Python 3
for f, b in zip(foo, bar):
print(f, b)
zip stops when the shorter of foo or bar...
How to print a percentage value in python?
...age floating point precision type:
>>> print "{0:.0%}".format(1./3)
33%
If you don't want integer division, you can import Python3's division from __future__:
>>> from __future__ import division
>>> 1 / 3
0.3333333333333333
# The above 33% example would could now be w...
str performance in python
While profiling a piece of python code ( python 2.6 up to 3.2 ), I discovered that the
str method to convert an object (in my case an integer) to a string is almost an order of magnitude slower than using string formatting.
...
How to get a value from a cell of a dataframe?
...row as a Series using iloc, and then the value using the column name:
In [3]: sub_df
Out[3]:
A B
2 -0.133653 -0.030854
In [4]: sub_df.iloc[0]
Out[4]:
A -0.133653
B -0.030854
Name: 2, dtype: float64
In [5]: sub_df.iloc[0]['A']
Out[5]: -0.13365288513107493
...
Finding duplicates in O(n) time and O(1) space
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13 Answers
13
Active
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Difference between '..' (double-dot) and '…' (triple-dot) in range generation?
... |
edited Dec 21 '16 at 0:33
answered Mar 13 '12 at 19:48
A...
Regex how to match an optional character
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You could improve your regex to
^([0-9]{5})+\s+([A-Z]?)\s+([A-Z])([0-9]{3})([0-9]{3})([A-Z]{3})([A-Z]{3})\s+([A-Z])[0-9]{3}([0-9]{4})([0-9]{2})([0-9]{2})
And, since in most regex dialects, \d is the same as [0-9]:
^(\d{5})+\s+([A-Z]?)\s+([A-Z])(\d{3})(\d{3})([A-Z]{3})([A-Z]{3})\s+([A-Z])\d{3}(...
What does auto do in margin:0 auto?
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answered Jul 3 '10 at 8:05
djdd87djdd87
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How to check if a value exists in a dictionary (python)
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394
>>> d = {'1': 'one', '3': 'three', '2': 'two', '5': 'five', '4': 'four'}
>>>...