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what does npm -D flag mean?

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multiple prints on the same line in Python

...e that there will be an extra space at the end of the output). The Python 3 Solution Since the above does not work in Python 3, you can do this instead (again, without importing sys): def install_xxx(): print("Installing XXX... ", end="", flush=True) install_xxx() print("[DONE]") The p...
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Ruby Hash to array of values

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Convert Python dict into a dataframe

... pairs): In [11]: pd.DataFrame(d.items()) # or list(d.items()) in python 3 Out[11]: 0 1 0 2012-07-02 392 1 2012-07-06 392 2 2012-06-29 391 3 2012-06-28 391 ... In [12]: pd.DataFrame(d.items(), columns=['Date', 'DateValue']) Out[12]: Date DateValue 0 2012-0...
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Images can't contain alpha channels or transparencies

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Javascript swap array elements

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Android Studio doesn't see device

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Assigning a variable NaN in python without numpy

...>>> import math >>> math.isnan(nan) True Before Python 3.5, one could use float("nan") (case insensitive). Note that checking to see if two things that are NaN are equal to one another will always return false. This is in part because two things that are "not a number" cannot (s...
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IE8 issue with Twitter Bootstrap 3

... answered Jul 30 '13 at 21:13 Bass JobsenBass Jobsen 47.2k1616 gold badges138138 silver badges216216 bronze badges ...
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What is causing this ActiveRecord::ReadOnlyRecord error?

... 283 Rails 2.3.3 and lower From the ActiveRecord CHANGELOG(v1.12.0, October 16th, 2005): Introdu...