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Mockito : how to verify method was called on an object created within a method?
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How to check if a column exists in Pandas
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To check if one or more columns all exist, you can use set.issubset, as in:
if set(['A','C']).issubset(df.columns):
df['sum'] = df['A'] + df['C']
As @brianpck points out in a comment, set([]) can alternatively be construct...
How can I specify working directory for popen
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Changing case in Vim
...haracters in motion uppercase, or use gu<motion> for lowercase.
For more of these, see Section 3 in Vim's change.txt help file.
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How to launch an Activity from another Application in Android
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Why is there no logical xor in JavaScript?
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Azure SQL Database Bacpac Local Restore
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vim repeat find next character 'x'
...nd next occurrence of character 'x',
but overlook that there is a word (or more words) containing 'x' in between the word I want to edit and the beginning cursor position.
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How to get the connection String from a database
... I understand this way, and like it :D but could you explain more on how to make a backup and then deploy? my knowledge of MS SQL Server is bad, i started using it about a hour ago :\
– Pomster
May 7 '12 at 9:55
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Difference between final and effectively final
...ssignment statement, the variable numberLength is not effectively final anymore. As a result, the Java compiler generates an error message similar to "local variables referenced from an inner class must be final or effectively final" where the inner class PhoneNumber tries to access the numberLength...