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How do I position one image on top of another in HTML?
...green solid;
}
<div class="parent">
<img class="image1" src="https://placehold.it/50" />
<img class="image2" src="https://placehold.it/100" />
</div>
As the simplest solution. That is:
Create a relative div that is placed in the flow of the page; place the b...
MongoDB aggregation framework match OR
...e of the same field, use the $in operator instead
of the $or operator.
https://docs.mongodb.com/manual/reference/operator/query/or/#or-versus-in
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Checking for an empty field with MySQL
...%\ '
Make sure that there's a space after the backslash. More info here: http://dev.mysql.com/doc/refman/5.0/en/string-comparison-functions.html
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Bash function to find newest file matching pattern
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The ls command has a parameter -t to sort by time. You can then grab the first (newest) with head -1.
ls -t b2* | head -1
But beware: Why you shouldn't parse the output of ls
My personal opinion: parsing ls is only dangerous whe...
What does DIM stand for in Visual Basic and BASIC?
...arrays.
DIM — (short for dimension) define the size of arrays
Ref: http://en.wikipedia.org/wiki/Dartmouth_BASIC
A part of the original BASIC compiler source code, where it would jump when finding a DIM command, in which you can clearly see the original intention for the keyword:
DIM LDA...
Can't import my own modules in Python
...append("..")
from myapp import SomeObject
though that is generally not recommended.
In general, if you want other people to use your Python package, you should use distutils to create a setup script. That way, anyone can install your package easily using a command like python setup.py install and...
What is the preferred/idiomatic way to insert into a map?
... which you assign a value. Obviously, this can be inefficient if the mapped_type can benefit from being directly initialized instead of default constructed and assigned. This method also makes it impossible to determine if an insertion has indeed taken place or if you have only overwritten the value...
python pandas remove duplicate columns
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How to merge lists into a list of tuples?
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In Python 2:
>>> list_a = [1, 2, 3, 4]
>>> list_b = [5, 6, 7, 8]
>>> zip(list_a, list_b)
[(1, 5), (2, 6), (3, 7), (4, 8)]
In Python 3:
>>> list_a = [1, 2, 3, 4]
>>> list_b = [5, 6, 7, 8]
>>> list(zi...
Checking if a string can be converted to float in Python
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Except that you forgot to name your function "will_it_float".
– unmounted
Apr 10 '09 at 1:07
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