I then understood the promise of the method

var p1= new Promise(function (resolve, reject) {
resolve({
data: [1, 2, 3, 4],
resposneCode: "00001",
resposneRemark: "success"
})

reject({
resposneCode: "00000",
resposneRemark: "failure, experiencing network problems" ,
data: [2]
})

}).then(function ({ data }) { return { data } }, function ({ data }) { return { data } });

p1.then(function (data) { console.log(data) }, function ({ data }) { return { data } });

In the case of reject and have the resolve, reject is not performed.

then will return to promise, two functions, a return rresolve a return to reject.