Personalize WooCommerce Currency

add_filter('woocommerce_currency_symbol', 'add_my_currency_symbol', 10, 2);

function add_my_currency_symbol( $currency_symbol, $currency ) {
     switch( $currency ) {
        //Modifying Jamaican JMD to JMD $ in this case.
          case 'JMD': $currency_symbol = 'JMD $'; break;
     }
     return $currency_symbol;
}