var xhr = new XMLHttpRequest();
xhr.abort();

var jq = $.ajax({
})
jp.abort();

const CancelToken = axios.CancelToken;
const source = CancelToken.source();
axios.get('/user/123', {
    cancelToken: source.token
}).
 
catch(function(thrown) {
    if (axios.isCancel(thrown)) {
        console.log('Request canceled', thrown.message);
    } else {
    // 處理錯誤
    }
});

axios.post('/user/123', {
    name: '小明'
}, {
    cancelToken: source.token
})

// 取消請求（message 引數是可選的）
source.cancel('canceled by the user.');

const CancelToken = axios.CancelToken;
let cancel;

axios.get('/user/12345', {
  cancelToken: new CancelToken(function executor(c) {
    // executor 函式接收一個 cancel 函式作為引數
    cancel = c;
  })
});

// cancel the request
cancel();