如何验证数组中的对象？

I am trying to make and store usernames and passwords in cleartext. I am not doing any type of authentication (I know I could be using node passport to do this, and encrypting, but I am just learning javascript, so I am just trying to play around)

我试图以明文形式制作和存储用户名和密码。我没有做任何类型的身份验证(我知道我可以使用节点通行证来执行此操作,并加密,但我只是在学习javascript,所以我只是想尝试一下)

I have an object that I have globally defined like this:

我有一个我全局定义的对象,如下所示:

var obj= {username: req.body.username,
          password: req.body.password}

that I am pushing onto my registeredUsers array:

我正在推动我的registeredUsers数组:

var registeredUsers = new Array();

My issue is that I want to be able to do something like:

我的问题是我希望能够做到这样的事情:

   if((($.inArray(username, registerdUsers) == username && 
($.inArray(password, registerdUsers)) == password){     
    res.redirect("/?error=Already Registered"); 
    }

This doesn't work, how can I check both values of my object to see if they are contained in my array?

这不起作用,我如何检查我的对象的两个值,看看它们是否包含在我的数组中?

Here are the functions that I am doing the authentication in case anyone is curious:

以下是我正在进行身份验证的功能,以防万一有人好奇:

function ensureAuthentication(req, res, next){
    //push object onto the registeredUsers array
    registeredUsers.push(obj);
    //if the user is already registered, throw error
    if (($.inArray(username, registeredUsers) && ($.inArray(password, registeredUsers)) {//obj.contains() username){
        res.redirect("/?error=Already Registered"); 
    }
    //if new user
    else{
        authentication.push(obj);
        console.log("added new user);
        //redirect to homepage
        res.rediret("/");
    }
}

and

function login(req, res) {
    //var username = req.body.username;
    req.session.username = username;
    req.session.password = password;
    loggedInUsers[username] = LoggedIn;
    if((($.inArray(username, registerdUsers) == username && ($.inArray(password, registerdUsers)) == password){
        //increase login count
        for(users in loggedInUsers){
            ++loginCount;
            console.log("Login Count: ", loginCount);
        }
        //redirect to login page
        res.redirect("/users")
    }
    else{
        //print out error message
        res.redirect("/?error=Error: incorrect username/password");
    }
}

2 个解决方案

#1

Find the object by username:

按用户名查找对象:

var user;

for(var i = 0; user = registeredUsers[i]; i++) {
    if(user.username === username)
        break;
}

Check the password:

检查密码:

var valid = user && user.password === password;

#2

$.inArray is like Java's indexOf function which returns the index of the position if the obj is in the array, otherwise -1

$ .inArray就像Java的indexOf函数,如果obj在数组中,则返回位置的索引,否则返回-1

So something like..

所以像..

if((($.inArray(username, registerdUsers) !== -1 && 
($.inArray(password, registerdUsers)) !== -1){     
    res.redirect("/?error=Already Registered"); 
}

..would check to make sure you don't have any duplicate users with the exact same password, but allow duplicate users.

..将检查以确保您没有任何具有完全相同密码的重复用户,但允许重复用户。

I think you are looking for something like..

我想你正在寻找像...

if($.inArray(username, registeredUsers) !== -1){     
    res.redirect("/?error=Already Registered"); 
}

which says, if the username exists in the registeredUsers array, then give the error msg 'Already Registered'

如果用户名存在于registeredUsers数组中,则输入错误消息msg'已经注册'

#1