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Why does comparing strings using either '==' or 'is' sometimes produce a different result?
I've got a Python program where two variables are set to the value 'public' . In a conditional expression I have the comparison var1 is var2 which fails, but if I change it to var1 == var2 it returns True .
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How to amend older Git commit? [duplicate]
I have made 3 git commits, but have not been pushed.
How can I amend the older one (ddc6859af44) and (47175e84c) which is not the most recent one?
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Cannot generate iOS App archive in xcode
I have a problem generating a iOS App archive from an application. The application compiles just fine and even works in the simulator. Now I wanted to make som ad hoc testing and cannot generate the iOS App Archive. When I click on the Product -> Archive it generates a generic xcode archive. Can an...
What is the idiomatic Go equivalent of C's ternary operator?
...ges of that family), a common idiom to declare and initialize a variable depending on a condition uses the ternary conditional operator :
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Simple (non-secure) hash function for JavaScript? [duplicate]
Can anyone suggest a simple (i.e. tens of lines of code, not hundreds of lines) hash function written in (browser-compatible) JavaScript? Ideally I'd like something that, when passed a string as input, produces something similar to the 32 character hexadecimal string that's the typical output of MD...
What code analysis tools do you use for your Java projects? [closed]
What code analysis tools do you use on your Java projects?
12 Answers
12
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How to filter Pandas dataframe using 'in' and 'not in' like in SQL
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You can use pd.Series.isin.
For "IN" use: something.isin(somewhere)
Or for "NOT IN": ~something.isin(somewhere)
As a worked example:
import pandas as pd
>>> df
country
0 US
1 UK
2 Germany
3 China
>>&...
Regular vs Context Free Grammars
I'm studying for my computing languages test, and there's one idea I'm having problems wrapping my head around.
8 Answe...
Add icon to submit button in twitter bootstrap 2
I want to use the twitter bootstrap icons on my form input submit buttons.
12 Answers
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How to assign the output of a command to a Makefile variable
I need to execute some make rules conditionally, only if the Python installed is greater than a certain version (say 2.5).
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