使用 javascript 和 lodash 访问被提取的对象

Question

I have an array of users in my javascript. For each user I am comparing if that user appears in another list.

var users = USERS.getUsers();

for (var i = 0; i < users.length; i++) {
    var u = users[i];
    if (util.pluck(myList.adminUsers, 'email').includes(u.email)) {
        // How do I check the value of the plucked value for myList.adminUsers.locationId ? 
        u.status = "admin";
    } 
}

users is an array of user objects.

[{...}]
    0:
        id: "1"
        email: "johndoe@gmail.com"
        firstname: "John"
        lastname: "Doe"
        roleid: "1" 
        _proto__: Object
    1:
        id: "2"
        email: "janedoe@gmail.com"
        firstname: "Jane"
        lastname: "Doe"
        roleid: "1"
        _proto__: Object

myList.adminUsers is also an array of user objects but also with locationId .

[{...}]
    0:
        id: "1"
        email: "johndoe@gmail.com"
        firstname: "John"
        lastname: "Doe"
        roleid: "1"
        locationId: "123"
        _proto__: Object

I need to compare another field in this check. So I need to see if the plucked object from myList.adminUsers has a field locationId that equals x , but I'm not sure how to do this?

How can I get access to the plucked object so I can check the value of locationId ?

Answer 1

Use findWhere instead of pluck . You can give it an object containing all the properties you want to match.

if (util.findWhere(myList.adminUsers, {email: u.email, locationId: u.locationId})) {
    u.status = "admin";
}

Answer 2

This should give you the list of admins that are found in the list of users and are in the location ID you provide as a value (I set it as a variable).

 const users = [ { id: "1", email: "johndoe@gmail.com", firstname: "John", lastname: "Doe", roleid: "1" }, { id: "2", email: "janedoe@gmail.com", firstname: "Jane", lastname: "Doe", roleid: "1" } ]; const admins = [ { id: "1", email: "johndoe@gmail.com", firstname: "John", lastname: "Doe", roleid: "1", locationId: "123" } ]; const locationIdToFind = '123'; const adminsWithLocation = _.intersectionWith(admins, users, (admin, user) => _.isEqual(admin.email, user.email) && _.isEqual(admin.locationId, locationIdToFind)); console.log(adminsWithLocation);

 <script src="https://cdn.jsdelivr.net/npm/lodash@4.17.15/lodash.min.js"></script>