How to Use JS file in Wordpress using Function

function_js.php

<?php


//includes all felxo_theme_file_css

function flexo_theme_file(){
    
 //include jS file
    wp_enqueue_script('jquery');
    wp_enqueue_script('easing-js', get_template_directory_uri(). '/js/jquery.easing.1.3.js', array('jquery'), '1.3', true);
    wp_enqueue_script('bootstrap-js', get_template_directory_uri(). '/js/bootstrap.min.js', array('jquery'), '1.3', true);
    wp_enqueue_script('fancybox-js', get_template_directory_uri(). '/js/jquery.fancybox.pack.js', array('jquery'), '1.3', true);
    wp_enqueue_script('fancybox-media-js', get_template_directory_uri(). '/js/jquery.fancybox-media.js', array('jquery'), '1.3', true);
    wp_enqueue_script('prettify-js', get_template_directory_uri(). '/js/google-code-prettify/prettify.js', array('jquery'), '1.3', true);
    wp_enqueue_script('quicksand-js', get_template_directory_uri(). '/js/portfolio/jquery.quicksand.js', array('jquery'), '1.3', true);
    wp_enqueue_script('setting-js', get_template_directory_uri(). '/js/portfolio/setting.js', array('jquery'), '1.3', true);
    wp_enqueue_script('flexslider-js', get_template_directory_uri(). '/js/jquery.flexslider.js', array('jquery'), '1.3', true);
    wp_enqueue_script('animate-js', get_template_directory_uri(). '/js/animate.js', array('jquery'), '1.3', true);
    wp_enqueue_script('custom-js', get_template_directory_uri(). '/js/custom.js', array('jquery'), '1.3', true);
    
}
add_action('wp_enqueue_scripts', 'flexo_theme_file');

?>