SOURCE

const tableData = {
    list: [
        { a: 11, b: 111},
        { a: 22, b: 222},
        { a: 33, b: 333},
    ]
}
const queryTableList = new Promise((resolve,reject) => {
      resolve(JSON.stringify(tableData))
    })

    queryTableList.then(res => {
      let result = JSON.parse(res)
      console.log(result, 890890)
    })