Python function prints None
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Function returns None without return statement
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How to tell whether value is NaN without using isNaN, which has false positives?
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Why is $1 in a function not printing the script's first argument?
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Python : AttributeError: 'NoneType' object has no attribute 'append'
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Why is "if not someobj:" better than "if someobj == None:" in Python?
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What does javascript function return in the absence of a return statement?
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Assignment of function parameter has no effect outside the function
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Using %f to print an integer variable
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How can I suppress the newline after a print statement?
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How does one ignore unexpected keyword arguments passed to a function?
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how to typeset empty inner product
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Python idiom to return first item or None
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How is returning the output of a function different from printing it?
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Printing names of variables passed to a function
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Appending an item to a python list in the declaration statement list = [].append(val) is a NoneType
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Can the :not() pseudo-class have multiple arguments?
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How best to determine if an argument is not sent to the JavaScript function