how to separate function return javascript code example

Example 1: return multiple values in javascript

function getNames() {
    // get names from the database or API
    let firstName = 'John',
        lastName = 'Doe';

    // return values
    return {
        firstName,
        lastName
    };
}

Example 2: javascript function multiple return

function doubleEachElement(num1, num2) {
  return [num1 * 2, num2 * 2];
}
const [a, b] = doubleEachElement(68, 100);