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How to generate random SHA1 hash to use as ID in node.js?
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Gabi PurcaruGabi Purcaru
27.5k88 gold badges6767 silver badges8787 bronze badges
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Insert a row to pandas dataframe
... # sorting by index
And you get, as desired:
A B C
0 2 3 4
1 5 6 7
2 7 8 9
See in Pandas documentation Indexing: Setting with enlargement.
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Printing all global variables/local variables?
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Miles Rout
1,06511 gold badge1212 silver badges2525 bronze badges
answered Jun 7 '11 at 6:44
kennytmkennytm
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Split a string on whitespace in Go?
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253
The strings package has a Fields method.
someString := "one two three four "
words := str...
Replace values in list using Python [duplicate]
...e if you want, but it doesn't actually save time:
items = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
for index, item in enumerate(items):
if not (item % 2):
items[index] = None
Here are (Python 3.6.3) timings demonstrating the non-timesave:
In [1]: %%timeit
...: items = [0, 1, 2, 3, 4, 5,...
SQL: How to get the count of each distinct value in a column?
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5
"That is, the ANSI standard recognises it as bleeding obvious what you mean. COUNT(1) has been optimised out by RDBMS vendors because of thi...
Named colors in matplotlib
... col = i // nrows
y = Y - (row * h) - h
xi_line = w * (col + 0.05)
xf_line = w * (col + 0.25)
xi_text = w * (col + 0.3)
ax.text(xi_text, y, name, fontsize=(h * 0.8),
horizontalalignment='left',
verticalalignment='center')
ax.hlines(y + h * 0.1, xi...
jQuery equivalent of getting the context of a Canvas
...;
}
setTimeout( function(){ ctx = $('#canvas').get(0).getContext('2d'); }, 500);
Using setTimeout is an easy way to ensure you don't try calling the canvas element before it's fully created and registered to the DOM.
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Best way to format integer as string with leading zeros? [duplicate]
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54
@Ajay 004 isn't an actual integer
– Alvaro
Jan 29 '15 at 18:37
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