How to restrict wordpress users to access dashboard and Admins only

How would we restrict access to the WP admin area to all users except admins, The users on our site have their own profile pages which do all the functions they need. So admin should be off limits to all except admins. Put these lines in your functions.php function jm_no_admin_access()
{
if( !current_user_can( 'administrator' ) ) {
wp_redirect( home_url() );
die();
}
}
add_action( 'admin_init', 'jm_no_admin_access', 1 );