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Get Image size WITHOUT loading image into memory
...e operations in the source like:
...
prefix = fp.read(16)
...
fp.seek(0)
...
but these hardly constitute reading the whole file. In fact .open simply returns a file object and the filename on success. In addition the docs say:
open(file, mode=”r”)
Opens and identifies the given ...
How to index into a dictionary?
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110
Dictionaries are unordered in Python versions up to and including Python 3.6. If you do not car...
Declare slice or make slice?
In Go, what is the difference between var s []int and s := make([]int, 0) ?
4 Answers
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Best way to serialize an NSData into a hexadeximal string
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206
This is a category applied to NSData that I wrote. It returns a hexadecimal NSString representi...
Is Big O(logn) log base e?
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edited Feb 15 '10 at 5:23
community wiki
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How to sum a variable by group
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404
Using aggregate:
aggregate(x$Frequency, by=list(Category=x$Category), FUN=sum)
Category x
1...
HTML5 record audio to file
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107
There is a fairly complete recording demo available at: http://webaudiodemos.appspot.com/Audio...
typecast string to integer - Postgres
...lesced field such as, for example:-
SELECT CAST(coalesce(<column>, '0') AS integer) as new_field
from <table>
where CAST(coalesce(<column>, '0') AS integer) >= 10;
share
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im...
Does List guarantee insertion order?
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edited Dec 20 '17 at 13:22
UuDdLrLrSs
6,47577 gold badges3232 silver badges5353 bronze badges
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Bootstrap 3 modal vertical position center
...: inline-block;
vertical-align: middle;
content: " ";
height: 100%;
}
}
.modal-dialog {
display: inline-block;
text-align: left;
vertical-align: middle;
}
And adjust a little bit .fade class to make sure it appears out of the top border of window, instead of center
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