Enqueue Script and Js in Plugin

gistfile1.txt

add_action('template_redirect', 'audience_intel_add_js');
function audience_intel_add_js() {
  // enqueue script
	wp_enqueue_script( 'audience_intel_js',
		plugins_url( 'js/script.js' , __FILE__ ),
		array('jquery'), audience_intel_version, true 
	 );

	// Get current page protocol
	$protocol = isset( $_SERVER["HTTPS"] ) ? 'https://' : 'http://';

	// Outpit admin-ajax.php URL with same protocol as current page
	$params = array(
		'ajaxurl' => admin_url('admin-ajax.php', $protocol)
	);
	wp_localize_script( 'audience_intel_js', 'audience_intel_js', $params );

	wp_register_style( 'audience-intel-style', plugins_url('css/plugin.css', __FILE__) );
	wp_enqueue_style( 'audience-intel-style' );
}