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Set a persistent environment variable from cmd.exe
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194
Use the SETX command (note the 'x' suffix) to set variables that persist after the cmd window ...
Calculating how many minutes there are between two times
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157
Try this
DateTime startTime = varValue
DateTime endTime = varTime
TimeSpan span = endTime.Su...
What function is to replace a substring from a string in C?
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21 Answers
21
Active
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Get Image size WITHOUT loading image into memory
... load the image into memory when calling .open. Looking at the docs of PIL 1.1.7, the docstring for .open says:
def open(fp, mode="r"):
"Open an image file, without loading the raster data"
There are a few file operations in the source like:
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prefix = fp.read(16)
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fp.seek(0)
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Why is rbindlist “better” than rbind?
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156
rbindlist is an optimized version of do.call(rbind, list(...)), which is known for being slow ...
Convert System.Drawing.Color to RGB and Hex Value
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edited Feb 8 '14 at 18:29
Julien Roncaglia
16k33 gold badges5555 silver badges7373 bronze badges
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Django - iterate number in for loop of a template
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631
Django provides it. You can use either:
{{ forloop.counter }} index starts at 1.
{{ forloop.co...
Responsive website zoomed out to full width on mobile
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<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
This tells smaller device browsers how to scale the page. You can read more about this here: https://developer.apple.com/library/content/documentation/AppleApplications/Reference/SafariWebContent/Usi...
How to programmatically show next view in ViewPager?
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154
As blessenm answered viewpager.setCurrentItem(int index) is the way to go.
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Convert number strings with commas in pandas DataFrame to float
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136
If you're reading in from csv then you can use the thousands arg:
df.read_csv('foo.tsv', sep=...