How to get the values from array using node.js?

Question

The array result shows like following

[ 
    { 
        _id: 56fe444d6ce2226431f5388c,
        name: 'admin',
        email: '[email protected]',
        password: '$2a$10$Wz34L5QZ6ACQIP.Q2WOJLuOSvs0aHQbSO1bhhOpiiXDOaN/AIF8U2',
        occasiontype: 'Anniversary',
        date: Mon Apr 18 2016 00:00:00 GMT+0530 (India Standard Time),
        __v: 0 
    }
]

node.js

router.post('/find-registry', function(req, res){
        var uEmail = req.body.email;

        var findUserId = function(db, callback) {
            var cursor =db.collection('users').find({email:uEmail}).toArray(function(err, docs){
                if(err){  
                    callback(new Error("Some problem"));
                } else {
                    callback(null,docs);
                } 
            });
        };

        MongoClient.connect(url, function(err, db) {
            assert.equal(null, err);
            findUserId(db, function(err,docs) {
                db.close();
                console.log(docs);
            });
        }); 


    });

Here the console.log(docs) showing the result of array. But there i need only name. How do i get it? I tried like console.log(docs[name]) but it showing undefined.

If you are only returning one document then use .findOne() instead. — Neil Lunn
– Neil Lunn, Commented Apr 6, 2016 at 13:26
docs[0].name will give you name of first json packet in array — singhakash
– singhakash, Commented Apr 6, 2016 at 13:26
@HemanthkumarHJ whatever happened to you man, are you alive? — atefth
– atefth, Commented Apr 12, 2016 at 7:19

atefth · Accepted Answer · 2016-04-06 13:40:55Z

3

You can get it like this -

docs[0].name

You have to access the first object inside the docs array and then access the name attribute of the object.

UPDATE

You could simply use the findOne() method instead and then access the name attribute like this -

docs.name

edited Apr 6, 2016 at 13:40

answered Apr 6, 2016 at 13:26

atefth

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Comments

christophetd · Accepted Answer · 2016-04-06 13:26:09Z

2

You should use docs[0].name. docs is an array, and each of its entries (only one in this case) is an object with several attributes (including name).

answered Apr 6, 2016 at 13:26

christophetd

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Comments

hownowbrowncow · Accepted Answer · 2016-04-06 14:16:37Z

-1

to find Each name in the array I recommend mapping to a function that finds the name of each object within the array. This is more extensible and error tolerant than selecting the 0th element in the array if and when you're passing multiple objects in the array (which is the reason it's in an array in the first place, right?).

answered Apr 6, 2016 at 14:16

hownowbrowncow

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