How to use

timestamp

function

in

Array

render() {
  const { response, isLoading } = this.state;

  return (
   <div className={styles.bstyles}>
    <Card bg="light" style={{ width: "18rem" }}>
     <Card.Header>{response.name}</Card.Header>
     <Card.Body>
      <Card.Text>
       Address: {response.address}
       <br />
       Freespace: {response.freespace} / {response.totalspace}
       <br />
      </Card.Text>
     </Card.Body>
     <Card.Footer>
      <small className="text-muted">Updated {response.timestamp}</small>
     </Card.Footer>
    </Card>
    <Button
     size="sm"
     disabled={isLoading}
     onClick={!isLoading ? this.fetchOpenData : null}
    >
     {isLoading ? "Updating" : "REFRESH"}
    </Button>
   </div>
  );
 }