Sensible script enqueueing - http://mikejolley.com/2013/12/sensible-script-enqueuing-shortcodes/ - use wp_enqueue_script('script-name'); in your shortcode.

sensible-script-enqueuing.php

<?php // Put this code in functions.php or a custom plugin. Don't include opening php tag.

/**
 * Register scripts to enqueue in our shortcode
 * @author  Mike Hemberger
 * @link http://thestizmedia.com/shortcode-to-show-map-markers-of-child-pages-with-acf-pro/
 */
add_action('wp_enqueue_scripts', 'tsm_register_non_global_scripts');
function tsm_register_non_global_scripts() {
	wp_register_script( 'google-map', 'https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=false', array(), '3', true );
	wp_register_script( 'amc-map', get_stylesheet_directory_uri() . '/assets/js/map.js', array('google-map'), CHILD_THEME_VERSION, true );
}