class search { constructor() { this.search_header() } search_header() { $(".search_input .icon-back1").onclick = () => history.back() $(".search_input .icon-search").onclick = async () => { $(".search_list").innerHTML="" var res = await indexServe.search({ "keyword": $(".search_input .search_msg").value }); console.log(res) item(res,$(".search_list")) } } } new search