javascript 两连胜Promise链

Posted 2021-05-04

//npm install bluebird
var Promise = require("bluebird");

// Enable cancellation
Promise.config({cancellation: true});

var promiseChain = myPromise1("A", "B")
    .then(function(result) {
        if (!result){
            return promiseChain.cancel();
        }
    })
    .then(myPromise2.bind(null,"A","A"));


var myPromise1 = function (var1, var2) {
    var promise = new Promise((resolve, reject)=>{
        console.log("PROMISE 1");
        if(var1 == var2){
            resolve(true);
        }
        else {
            resolve(false);
        }
    });
    return promise;
}

var myPromise2 = function (var1, var2) {
    var promise = new Promise((resolve, reject)=>{
        console.log("PROMISE 2");
        if(var1 == var2){
            resolve(true);
        }
        else {
            resolve(false);
        }
    });
    return promise;
}