// 回调地狱
$.ajax({
url: 'https://free-api.heweather.net/s6/weather/now?location=beijing&key=4693ff5ea653469f8bb0c29638035976',
method: 'get',
success(res) {
console.log(res);
// 继续发送请求
$.ajax({
url: '',
method: 'get',
success(res1) {
// 发送ajax
$.ajax({
url: '',
method: 'get',
success(res2) {
// 发送ajax
$
}
})
}
})
}
})
Generator 部署ajax操作,让异步代码同步化
function* main() { console.log('main'); let res = yield request( 'https://free-api.heweather.net/s6/weather/now?location=beijing&key=4693ff5ea653469f8bb0c29638035976' ) console.log(res); // 执行后面的操作 console.log('数据请求完成,可以继续操作'); } const ite = main(); ite.next(); function request(url) { $.ajax({ url, method: 'get', success(res) { console.log(ite.next(res)); } }) }