I have a directive with refreshInterval attribute. I would like to make
that attribute optional ('@?') but fallback to a default value if one is
not provided. Is there a scope syntax for the latter ie something like:
scope: { refreshInterval : '@?:10' }
...or do I just use:
scope: { refreshInterval : '@?' }
...and then check whether $scope.refreshInterval is defined in link() or
controller() and - if not - assign to '10' there?
thanks,
-nikita
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