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Combining a class selector and an attribute selector with jQuery
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BoltClock♦BoltClock
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Save file to specific folder with curl command
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edited Sep 23 '18 at 6:08
anatoly techtonik
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Trim a string based on the string length
I want to trim a string if the length exceeds 10 characters.
11 Answers
11
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Scala: What is a TypeTag and how do I use it?
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+50
A TypeTag solves the problem that Scala's types are erased at runtime (type erasure). If we wanna do
class Foo
class Bar extends Foo
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Java: PrintStream to String?
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edited Jan 24 at 20:30
capt_hobbes
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answered Nov 19 '09 at 3:21
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What's the difference between lists enclosed by square brackets and parentheses in Python?
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Ondrej K.
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answered Jan 17 '12 at 19:04
jterracejterrace
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Should I be concerned about excess, non-running, Docker containers?
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answered Jun 10 '13 at 13:21
Ken CochraneKen Cochrane
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How to calculate the number of days between two dates? [duplicate]
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const oneDay = 24 * 60 * 60 * 1000; // hours*minutes*seconds*milliseconds
const firstDate = new Date(2008, 1, 12);
const secondDate = new Date(2008, 1, 22);
const diffDays = Math.round(Math.abs((firstDate - secondDate) / oneDay));
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Compare two DataFrames and output their differences side-by-side
... rows are empty*:
In [21]: ne = (df1 != df2).any(1)
In [22]: ne
Out[22]:
0 False
1 True
2 True
dtype: bool
Then we can see which entries have changed:
In [23]: ne_stacked = (df1 != df2).stack()
In [24]: changed = ne_stacked[ne_stacked]
In [25]: changed.index.names = ['id', 'col']
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How to git clone a specific tag
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edited Jul 17 at 10:11
Giszmo
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answered F...