json parse not correctly generate array

Asked Feb 10 '22 at 09:37

Active Feb 10 '22 at 09:50

Viewed 31 times

I try to parse the following string which i get via an http endpoint into an array JSON.parse:

const jsonstring = "{ id: 'Nmq85HbJNnBMFCbCZ', users: [ "A1", "A2", "A3" ] }"
const json = JSON.parse(jsonstring); // outputs: { id: 'Nmq85HbJNnBMFCbCZ', users: [ 'A1', 'A2', 'A3' ] }

But when i access the array, there is:

for( const element in json.users ) console.log('Element:', element); // Element is 0, 1, 2... instead of A1, A2, A3

What am i doing wrong?

edited Feb 10 '22 at 09:46

asked Feb 10 '22 at 09:37

Gobliins

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By your output, it sounds like you're doing `for( const element in json.users)`, are you definitely using `for(const element in json)` ? – Nick Parsons Feb 10 '22 at 09:42
Ah yes. I am going to correct it. – Gobliins Feb 10 '22 at 09:44
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You can use a `for..of` loop to loop over an array's elements. A `for..in` loop will loop over the properties of the array (such as its indexes), see the link at the top of your question for more details – Nick Parsons Feb 10 '22 at 09:45
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Correct. That was the problem. – Gobliins Feb 10 '22 at 09:50

json parse not correctly generate array

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