gistfile1.ts

export class MyApp {
    _initDb() {
        var promised = [];
        
        promised.push(new Promise((resolve, reject) => {
            alert('wait 1.....');
            return resolve(true);
        }));
        
        promised.push(new Promise((resolve, reject) => {
            return resolve(true);
        }));
        
        promised.push(new Promise((resolve, reject) => {
            if(confirm('resolve this one?)){
              return resolve(true);
            }
            return reject(false);
        }));
        
        return Promise.all(promised).then((success) => {
            return Promise.resolve(success);
        }, (error) => {
            return Promise.reject(error);
        });
    }
}