Variable classMapConst

A directive that applies dynamic CSS classes.

This must be used in the class attribute and must be the only part used in the attribute. It takes each property in the classInfo argument and adds the property name to the element's classList if the property value is truthy; if the property value is falsy, the property name is removed from the element's class.

For example {foo: bar} applies the class foo if the value of bar is truthy.