Bcrypt比较始终返回false

Question

我正在尝试使用bcryptjs进行密码验证，

   const bcrypt = require('bcryptjs');
   login(post){
        this.uid = post.uid;
        this.pin = post.pin;
        this.getUser(this.uid);
        if(this.checkUser != undefined && this.pin != undefined){
          console.log(this.checkUser)
          console.log(this.pin)
          console.log(this.checkUser["pin"])
          bcrypt.compare(this.checkUser["pin"], this.pin, (err, res) => {
            if (err){
              console.log("Something went wrong  " +  err)
              // handle error, Wrong password
            }
            else if (res) {
              // Send JWT, Correct password
              console.log("It worked!  " +  res)
              // TEMP
              sessionStorage.setItem("name", this.checkUser["name"]);
              sessionStorage.setItem('loggedin',"true");
              location.reload();
              //
            } 
            else {
              console.log("Something else went wrong!")
            }
          });
         }
       }
    
      
      getUser(uid){
        this.BrukerService.getSingle(uid).subscribe((res: String) => {
          this.checkUser = JSON.parse(res);
        },
        (err) => {
          this.error = err;
        });
      }

this.checkUser：

{id: "1", uid: "1234", pin: "$2a$05$7251G35/U5YfLby9oQrqpOA58szCqWEo4lOSLxRmn0HV1nZ4Tn962", created: "2020-12-21 14:28:00", name: "Martin"}

此.pin：

1234

this.checkUser[“pin”]：

$2a$05$7251G35/U5YfLby9oQrqpOA58szCqWEo4lOSLxRmn0HV1nZ4Tn962

检查用户是从数据库中检索的，this.pin是用户的正确传递。不管怎样，bcrypt.compare转到其他地方，所以它总是记录"其他地方出错了"，我不明白可能是什么问题，它正确输出哈希和引脚，即使我直接将它们作为字符串插入bcrypt.compare函数，它也会转到其他地方，res总是假的，错误为空。

Answer 1

根据bcryptjs文件https://www.npmjs.com/package/bcryptjs所说:

bcrypt.compare("not_bacon", hash, function(err, res) {
    // res === false
});

当hash（this.checkUser[“pin”]）参数应该是第二个参数时，您首先使用它。