CODEWITHSUNDEEP
javascriptnode.jsmongodb
Liam Hogan
Liam Hogan

Reputation: 334

Reading from an object javascript

Have a look

console.log(docs);
console.log(docs.key);
console.log(docs.user);
// outputs:
[ { key: 'HunueVwerwbZwesZHxntesDciakecyiJ',
user: '[email protected]',
createdAt: Mon Mar 17 2014 08:48:30 GMT-0400 (EDT),
_id: 5326ef1ee883062522faa4a8,
__v: 0 } ]
undefined
undefined

What's wrong with the way I am trying to access this object?

Upvotes: 1

Views: 51

Answers (1)

thefourtheye
thefourtheye

Reputation: 239443

docs is an Array. You can check that like this

console.log(Array.isArray(docs));
// true

So, you can check the length of the array, like this

console.log(docs.length);
// 1

Since it has only one element, we can access the first element with the subscript notation, like this

console.log(docs[0].key);
console.log(docs[0].user);

Note: We access the first element with 0, because JavaScript Arrays start with index 0.

Instead you can drop the object and retain only the array, like this

docs = docs[0];

Upvotes: 3

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