Vue.elementDirective( id, [definition] )
Arguments: {String} id {Object} [definition]
Usage: Register or retrieve a global element directive. // register
Vue.elementDirective('my-element', {
bind: function () {},
// element directives do not use `update`
unbind: function () {}
})
// getter, return the directive definition if registered
var myDirective = Vue.elementDirective('my-element')
See also: Element Directives