Object.keys Undefined

Question

I have JSON data as follows,

var data={'08/06/2020': Array(1), '08/07/2020': Array(1), '08/08/2020': Array(1), '08/09/2020': Array(1), '08/10/2020': Array(1), …}

Trying to loop through the object keys, but getting an undefined error,

data.keys(function(v,i){ 
   // some code
 });

It's because [`Object#keys`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/keys) is a method that only exists in the [`Object` built-in object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object). — Edric, Sep 06 '20 at 17:25

score 2 · Answer 1 · answered Sep 06 '20 at 17:25

Using Object.keys and delete the ,... at the end of your object.

var data={'08/06/2020': Array(1), '08/07/2020': Array(1), '08/08/2020': Array(1), '08/09/2020': Array(1), '08/10/2020': Array(1)}

Object.keys(data).forEach(key => console.log(key));

Object.keys Undefined

1 Answers1