Vue click outside element directive

vue-click-outside-element.js

Vue.directive('click-outside-element', {
    bind(el, bind, vn) {
        el.cO = event => {
            if (!(el == event.target || el.contains(event.target))) {
                if(vn.context[bind.expression]) {
                    vn.context[bind.expression](event)
                }
            }
        }
        document.body.addEventListener('click', el.cO)
    },
    unbind(el) {
        document.body.removeEventListener('click', el.cO)
    }
})