@moyi.rk/template-vue-element-admin/template/src/directive/waves/index.js

vue2 element admin template

import waves from './waves'

const install = function(Vue) {
  Vue.directive('waves', waves)
}

if (window.Vue) {
  window.waves = waves
  Vue.use(install); // eslint-disable-line
}

waves.install = install
export default waves