docs/vendor.js
function elementClassProp(index, stylingIndex, value) {
    updateClassProp(getStylingContext(index), stylingIndex, value ? true : false);
}
function elementClassProp(index, stylingIndex, value) {
    updateClassProp(getStylingContext(index), stylingIndex, value ? true : false);
}
function elementClassProp ( index , stylingIndex , value ) { updateClassProp ( getStylingContext ( index ) , stylingIndex , value ? true : false ) ; }
Add or remove a class in a `classList` on a DOM element.

This instruction is meant to handle the [class.foo]="exp" case

@param index The index of the element to update in the data array
@param className Name of class to toggle. Because it is going to DOM, this is not subject to
renaming as part of minification.
@param value A value indicating if a given class should be added or removed.
Add or remove a class in a classList on a DOM element .