get primary menu wordpress code example

Example 1: wp_nav_menu

wp_nav_menu( array(
    'menu' => 'TEST',
    'menu_class' => "", 
    'menu_id'   => "",
    'container' => false
) );

Example 2: wp main menu

wp_nav_menu( array( 'theme_location' => 'header', 'menu' => 'Main Menu') );