search for: optional_arg

Can you have a Javascript function with a param that''s defaulted if it isn''t present? function X(a, b = false, c = ''dog'') { } X(5) calls X with a=5, b=false, c=''dog'' X(4, true) calls X with a=4, b=true, c=''dog'' X(3, true, ''cat'') calls X with a=3, b=true, c=''cat'' ? -- Posted via

This rather complex set of patches allow non-optargs functions to gain optional arguments, while preserving source and binary backwards compatibility. The problem is that we cannot add an optional argument to an existing function. For example, we might want to add flags to the 'lvresize' API which currently has no optional arguments.