Discussion on: Nested Conditional Operators

const validateInput = ({ field1, field2, field3 }) => {
    if (!field1) {
        return Promise.reject('Missing field1');
    }
    if (!Array.isArray(field2)) {
        return Promise.reject('field2 is not an array');
    }
    if (!isValidType(field3)) {
        return Promise.reject('field3 is invalid');
    }
    return Promise.resolve();
}