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How to add item to the beginning of List?
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Use the Insert method:
ti.Insert(0, initialItem);
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An “and” operator for an “if” statement in Bash
...US} is empty. It would probably be better to do:
if ! [ "${STATUS}" -eq 200 ] 2> /dev/null && [ "${STRING}" != "${VALUE}" ]; then
or
if [ "${STATUS}" != 200 ] && [ "${STRING}" != "${VALUE}" ]; then
It's hard to say, since you haven't shown us exactly what is going wrong wit...
float64 with pandas to_csv
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df.to_csv('pandasfile.csv', float_format='%.3f')
or, if you don't want 0.0001 to be rounded to zero:
df.to_csv('pandasfile.csv', float_format='%g')
will give you:
Bob,0.085
Alice,0.005
in your output file.
For an explanation of %g, see Format Specification Mini-Language.
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Make Iframe to fit 100% of container's remaining height
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Update in 2019
TL;DR: Today the best option is the last one in this answer - flexbox. Everything supports it nicely and has for years. Go for that and don't look back. The rest of this answer is left for historical reasons.
The tric...
SVG gradient using CSS
...pe-rendering: crispEdges;
fill: url(#MyGradient);
}
<svg width="100" height="50" version="1.1" xmlns="http://www.w3.org/2000/svg">
<style type="text/css">
rect{fill:url(#MyGradient)}
</style>
<defs>
<linearGradient id="MyGradie...
C# Double - ToString() formatting with two decimal places but no rounding
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210
I use the following:
double x = Math.Truncate(myDoubleValue * 100) / 100;
For instance:
If t...
How to add image to canvas
....png';
base_image.onload = function(){
context.drawImage(base_image, 0, 0);
}
}
I.e. draw the image in the onload callback of the image.
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Print all day-dates between two dates [duplicate]
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I came up with this:
from datetime import date, timedelta
sdate = date(2008, 8, 15) # start date
edate = date(2008, 9, 15) # end date
delta = edate - sdate # as timedelta
for i in range(delta.days + 1):
day = sdate + timedelta(days=i)
print(day)
The output:
2008-08-15
2008-...
How do I use itertools.groupby()?
... ("vehicle", "school bus")]
for key, group in groupby(things, lambda x: x[0]):
for thing in group:
print("A %s is a %s." % (thing[1], key))
print("")
This will give you the output:
A bear is a animal.
A duck is a animal.
A cactus is a plant.
A speed boat is a vehicle.
A schoo...
Explain the use of a bit vector for determining if all characters are unique
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103
int checker is used here as a storage for bits. Every bit in integer value can be treated as a ...