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Why does ~True result in -2?
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int(True) is 1.
1 is:
00000001
and ~1 is:
11111110
Which is -2 in Two's complement1
1 Flip all the bits, add 1 to the resulting number and interpret the result as a binary representation of the magnitude and add a negative sign (s...
How can I calculate the time between 2 Dates in typescript
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160
Use the getTime method to get the time in total milliseconds since 1970-01-01, and subtract th...
Running a cron job at 2:30 AM everyday
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541
crontab -e
add:
30 2 * * * /your/command
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C# DateTime to “YYYYMMDDHHMMSS” format
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17 Answers
17
Active
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Redis - Connect to Remote Server
... the Quick Start guide on http://redis.io/topics/quickstart on my Ubuntu 10.10 server. I'm running the service as dameon (so it can be run by init.d)
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How to get the name of the calling method?
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213
puts caller[0]
or perhaps...
puts caller[0][/`.*'/][1..-2]
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How to get the index of a maximum element in a numpy array along one axis
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144
>>> a.argmax(axis=0)
array([1, 1, 0])
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How do I get the row count of a pandas DataFrame?
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14 Answers
14
Active
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space between divs - display table-cell
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193
You can use border-spacing property:
HTML:
<div class="table">
<div class="row"...