What does optional in python mean?

A Python optional argument is an argument with a default value . You can specify a default value for an argument using the assignment operator. There is no need to specify a value for an optional argument when you call a function. This is because the default value will be used if one is not specified.16 Kas 2020

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What does optional in python mean?

A Python optional argument is an argument with a default value . You can specify a default value for an argument using the assignment operator. There is no need to specify a value for an optional argument when you call a function. This is because the default value will be used if one is not specified.16 Kas 2020

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How do you define optional parameters?

A method that contains optional parameters does not force to pass arguments at calling time. It means we call method without passing the arguments . The optional parameter contains a default value in function definition. If we do not pass optional argument value at calling time, the default value is used.

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Are parameters optional in JavaScript?

In JavaScript, function parameters default to undefined . However, it’s often useful to set a different default value. This is where default parameters can help. In the past, the general strategy for setting defaults was to test parameter values in the function body and assign a value if they are undefined .

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