Javascript 在Promise()中使用while循环

Javascript 在Promise()中使用while循环,javascript,express,promise,sequelize.js,Javascript,Express,Promise,Sequelize.js,我有一个用户列表,我正在检查所有用户的某些详细信息。我正在使用sequelize js和express。我想知道我们可以使用像这样的while循环在数据库中搜索和保存数据。请帮助我。提前感谢 let royalty_bonus = async (sponsor) => { return await new Promise((resolve, reject) => { models.RoyaltyUser.findById(sponsor)

我有一个用户列表,我正在检查所有用户的某些详细信息。我正在使用sequelize js和express。我想知道我们可以使用像这样的while循环在数据库中搜索和保存数据。请帮助我。提前感谢

let royalty_bonus = async (sponsor) => {
    return await new Promise((resolve, reject) => {
        models.RoyaltyUser.findById(sponsor)
            .then(async (sponsorRow) => {
                let user_level = 1;
                let sponsor_id = sponsorRow;

                try {
                    while (sponsor_id != null && user_level <= 3) {
                        let level_length = await getLevel(sponsor_id.id, user_level);
                        if (user_level === 1 && level_length.length === 3) {
                            console.log('Level One Achieved By ', sponsor_id.id);
                        } else if (user_level === 2 && level_length.length === 9) {
                            console.log('Level Two Is Achieved By ', sponsor_id.id);
                        } else {
                            console.log('No Level');
                        }

                        await models.RoyaltyUser.findOne({where: {id: sponsor_id.sId}})
                            .then((sponsor_new_row) => {
                                sponsor_id = sponsor_new_row;
                            })
                            .catch((e) => {
                                console.log(' Inner Catch Error ', e.message);
                                reject();
                            });
                        user_level++;
                    }
                    resolve();
                }
                catch (e) {
                    reject(e);
                }

            })
            .catch((e) => {
                reject('catch ', e.message);
            });
    });

};
router.get('/royalty_user', async (req, res, next) => {
    royalty_bonus(4)
        .then(() => {
            console.log('done');
        })
        .catch((e) => {
            console.log('Catch two', e.message);
        })
});
让版税奖金=异步(赞助商)=>{
返回等待新承诺((解决、拒绝)=>{
models.RoyaltyUser.findById(赞助商)
.然后(异步(同步)=>{
让用户_级别=1;
让赞助人_id=赞助人;
试一试{
while(赞助商id!=空和用户级别(&U){
赞助商id=赞助商新行;
})
.catch((e)=>{
日志('internalcatch Error',e.message);
拒绝();
});
用户级++;
}
解决();
}
捕获(e){
拒绝(e);
}
})
.catch((e)=>{
拒绝('catch',e.message);
});
});
};
router.get('/royalty\u user',异步(req,res,next)=>{
版税奖金(4)
.然后(()=>{
console.log('done');
})
.catch((e)=>{
log('Catch two',e.message);
})
});
避免、避免和不要混合
。然后使用
async
/
等待
语法进行
回调。您可以简化很多:

async function royalty_bonus(sponsor) {
    const sponsorRow = await models.RoyaltyUser.findById(sponsor);
    let user_level = 1;
    let sponsor_id = sponsorRow;

    while (sponsor_id != null && user_level <= 3) {
        let level_length = await getLevel(sponsor_id.id, user_level);
        if (user_level === 1 && level_length.length === 3) {
            console.log('Level One Achieved By ', sponsor_id.id);
        } else if (user_level === 2 && level_length.length === 9) {
            console.log('Level Two Is Achieved By ', sponsor_id.id);
        } else {
            console.log('No Level');
        }

        const sponsor_new_row = await models.RoyaltyUser.findOne({where: {id: sponsor_id.sId}});
        sponsor_id = sponsor_new_row;
        user_level++;
    }    
}

router.get('/royalty_user', (req, res, next) => {
    royalty_bonus(4).then(() => {
        console.log('done');
    }, e => {
        console.log('Catch two', e.message);
    });
});
异步功能版税奖金(赞助商){
const sponsause=wait models.RoyaltyUser.findById(赞助商);
让用户_级别=1;
让赞助人_id=赞助人;
while(赞助商id!=空和用户级别(&U){
版税奖金(4)。然后(()=>{
console.log('done');
},e=>{
log('Catch two',e.message);
});
});

避免!当您使用
异步时,避免使用
然后
等待
!到底是什么不起作用?这是按预期工作的。但我不确定这在某一点上是否会失败。我是新手。我只想知道这种承诺执行是对的还是错的。
while
循环您询问d关于问题的标题是好的,其余的是糟糕的:-)你能告诉我怎样才能消除糟糕的事情吗?bcz这超出了我的范围