WP Calling jquery in wp plugin

 /*==============================================================
 Adding Latest jQuery from Wordpress for plugin development
=================================================================*/
function _plugin_scripts() {
    wp_enqueue_script('jquery');
    wp_enqueue_script('scrool_up_custom_scrollUp',plugins_url( '/js/jquery.scrollUp.min.js' , __FILE__ ),array( 'jquery' ));
    wp_enqueue_script('scrool_up_custom_easing',plugins_url( '/js/jquery.easing.min.js' , __FILE__ ),array( 'jquery' ));
    wp_enqueue_script('scrool_up_custom_script',plugins_url( '/js/main.js' , __FILE__ ),array( 'jquery' ));

    wp_enqueue_style('scrool_up_custom_style',plugins_url( '/css/scrollup_style.css' , __FILE__ ));

}
add_action('init', 'pluginname_plugin_scripts');