// 树状结构构建插件 const last = { install (Vue) { Vue.prototype.$last = function(options) { const last = item => { const isCode = options.menus.filter(j => j.code == item); if (isCode.length > 0) { const children = options.menus.filter(k => k.parentCode == isCode[0]?.code); if (children.length > 0) return last(children[0]?.code); } return isCode[0]; }; const item = last(options.code); sessionStorage.setItem('code', item.code); return item; }; } }; export default last;