default values in functions
I would like to call a function with parameters, i.e. multiply('2','3','box1').
In this example, the first argument would be multiplied with the second and written into the div with the id="box1".
How can I set a default value for the third argument? => so if I call multiply('2','3') then it should automatically set the output-variable to 'box1' if not other defined in the call.
I'm sure that this is possible but I unfortunately can't find anything about default values neither in this forum nor with google...
Thank you for the answers,
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