DOD.js

var user_data = {
    admin_users: [
        {
          role: 'admin',
          email: 'fakeadmin1@email.com'
        },
        {
          role: 'admin',
          email: 'fakeadmin2@email.com'
        },
    ],
    admin_user_emails: ['fakeadmin1@email.com','fakeadmin2@email.com'],
    regular_users: [
        {
            role: 'user',
            email: 'fakeuser@email.com'
        }  
    ]
};
console.log(user_data.admin_user_emails);