how can i loop through the array inside of an object. and render it in the react component

Question

i wanted to loop through the array inside on an object and pull the data to render in the react component. but i don't know how to use map to the array inside on the object. i tried many way's but it's not working

const [emailData, setEmailData] = useState("");

res?.data.emails.map((email) =>  
    setEmailData(
        <Table.Row>
            <Table.Cell>{email.emailed_to}</Table.Cell>
            <Table.Cell>{email.notes}</Table.Cell>
            <Table.Cell>{email.created_at}</Table.Cell>
        </Table.Row>
    );
);

return ({ emailData });

Domino987 · Accepted Answer · 2021-05-12 14:28:26Z

1

You can use the Object functions for that which wrap your object.

const object1 = {a: 1, b: 2, c: 3}

There are 3 versions of it:

Keys: Object.keys(object1) returns an array of all keys => [a,b,c]
Values: Object.values(object1) returns an array of all values => [1,2,3]
Entries: Object.entries(object1) returns an array of all entires as an array of arrays=> [[a,1],[b,2],[c,3]]

The last one could be used like this

Object.entries(object1).map(([key, value]) => ....)

answered May 12, 2021 at 14:28

Domino987

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1 Comment

Domino987 Over a year ago

@Shuvo Perfect, if this helped you, could you mark it as accepted so other might find it as well?

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