It adds checks to make default legends work when the option 'legend' is not used on chart declaration. Without this check, hiding/showing variables by clicking on legend won't work if legend option and
legendClick functions are not present in chart declaration.
acouch
commented
6 years ago
It adds checks to make default legends work when the option 'legend' is not used on chart declaration. Without this check, hiding/showing variables by clicking on legend won't work if legend option and legendClick functions are not present in chart declaration.