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How to run Ruby code from terminal?
...n one line with the -e flag:
ruby -e "puts 'hi'"
Check the man page for more information.
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DROP IF EXISTS VS DROP?
...se, your current DB engine may not support this option, it is hard to tell more about the error with the information you provide.
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Can CSS detect the number of children an element has?
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How do I make many-to-many field optional in Django?
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What is phtml, and when should I use a .phtml extension rather than .php?
...n rather than .php would just be a formality used to denote a file that is more html dense rather than php.
– fvgs
Aug 8 '12 at 6:50
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How to use a WSDL file to create a WCF service (not make a call)
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Case insensitive searching in Oracle
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SqlException from Entity Framework - New transaction is not allowed because there are other threads
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Read user input inside a loop
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Read from the controlling terminal device:
read input </dev/tty
more info: http://compgroups.net/comp.unix.shell/Fixing-stdin-inside-a-redirected-loop
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Applying function with multiple arguments to create a new pandas column
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One more dict style clean syntax:
df["new_column"] = df.apply(lambda x: x["A"] * x["B"], axis = 1)
or,
df["new_column"] = df["A"] * df["B"]
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