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https://github.com/taniarascia/wp-functions
A compilation of function snippets for WordPress developers who create their own themes.
https://github.com/taniarascia/wp-functions
functions php settings wordpress wordpress-development wordpress-functions
Last synced: 27 days ago
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A compilation of function snippets for WordPress developers who create their own themes.
- Host: GitHub
- URL: https://github.com/taniarascia/wp-functions
- Owner: taniarascia
- License: mit
- Created: 2015-12-18T16:21:37.000Z (almost 9 years ago)
- Default Branch: master
- Last Pushed: 2024-02-25T06:11:49.000Z (9 months ago)
- Last Synced: 2024-09-30T05:05:13.981Z (about 1 month ago)
- Topics: functions, php, settings, wordpress, wordpress-development, wordpress-functions
- Homepage:
- Size: 73.2 KB
- Stars: 1,214
- Watchers: 99
- Forks: 263
- Open Issues: 2
-
Metadata Files:
- Readme: README.md
- License: LICENSE.md
Awesome Lists containing this project
README
# Useful WordPress Functions
This is a list of useful WordPress functions that I often reference to enhance or clean up my sites. Please be careful and make backups.
- [Hide WordPress Update Nag to All But Admins](#hide-wordpress-update-nag-to-all-but-admins)
- [Utilize Proper WordPress Titles](#utilize-proper-wordpress-titles)
- [Create Custom WordPress Dashboard Widget](#create-custom-wordpress-dashboard-widget)
- [Remove All Dashboard Widgets](#remove-all-dashboard-widgets)
- [Include Navigation Menus](#include-navigation-menus)
- [Insert Custom Login Logo](#insert-custom-login-logo)
- [Modify Admin Footer Text](#modify-admin-footer-text)
- [Enqueue Styles and Scripts](#enqueue-styles-and-scripts)
- [Enqueue Google Fonts](#enqueue-google-fonts)
- [Modify Excerpt Length](#modify-excerpt-length)
- [Change Read More Link](#change-read-more-link)
- [Change More Excerpt](#change-more-excerpt)
- [Disable Emoji Mess](#disable-emoji-mess)
- [Remove Comments](#remove-comments)
- [Change Media Gallery URL](#change-media-gallery-url)
- [Create Custom Thumbnail Size](#create-custom-thumbnail-size)
- [Add Categories for Attachments](#add-categories-for-attachments)
- [Add Tags for Attachments](#add-tags-for-attachments)
- [Add Custom Excerpt to Pages](#add-custom-excerpt-to-pages)
- [Create a Global String](#create-a-global-string)
- [Support Featured Images](#support-featured-images)
- [Support Search Form](#support-search-form)
- [Excluding pages from search](#excluding-pages-from-search)
- [Disable XMLRPC](#disable-xmlrpcphp)
- [Escape HTML in Posts](#escape-html-in-posts)
- [Create Custom Global Settings](#create-custom-global-settings)
- [Remove WordPress Admin Bar](#remove-wordpress-admin-bar)
- [Add Open Graph Meta Tags](#add-open-graph-meta-tags)
- [Add Custom Post Type](#add-custom-post-type)
- [Implement Preconnect to Google Fonts in Themes](#implement-preconnect-to-google-fonts-in-themes)
- [Add Thumbnail Column to Post Listing](#add-thumbnail-column-to-post-listing)
- [Add Lead Class to First Paragraph](#add-lead-class-to-first-paragraph)
- [Exclude Custom Post Type from Search](#exclude-custom-post-type-from-search)
- [Remove Query String from Static Resources](#remove-query-string-from-static-resources)
- [Disable Website Field From Comment Form](#disable-website-field-from-comment-form)
- [Modify jQuery](#modify-jquery)
- [Disable JSON Rest API](#disable-json-rest-api)
- [Switch Post Type](#switch-post-type)
- [PHP Logger](#php-logger)
- [Always Show Second Bar in TinyMCE](#always-show-second-bar-in-tinymce)
- [Remove Admin Menu Items Depending on User Role](#remove-admin-menu-items-depending-on-user-role)
- [Remove Admin Menu Items Depending on Email Address (Domain)](#remove-admin-menu-items-depending-on-email-address-domain)
- [Reorder Admin Menu Items](#reorder-admin-menu-items)
- [Exclude a Category From WordPress Loops](#exclude-a-category-from-wordpress-loops)
- [Disable the message "JQMIGRATE: Migrate is installed, version 1.4.1"](#user-content-disable-the-message---jqmigrate-migrate-is-installed-version-141)
- [Load heavy 3rd-party scripts later for better performance](#load-heavy-3rd-party-scripts-later-for-better-performance)
## Hide WordPress Update Nag to All But Admins
```php
/**
* Hide WordPress update nag to all but admins
*/
function hide_update_notice_to_all_but_admin() {
if ( !current_user_can( 'update_core' ) ) {
remove_action( 'admin_notices', 'update_nag', 3 );
}
}
add_action( 'admin_head', 'hide_update_notice_to_all_but_admin', 1 );
```
## Utilize Proper WordPress Titles
Make sure to remove the `` tag from your header.
```php
/**
* Utilize proper WordPress titles
*/
add_theme_support( 'title-tag' );
```
## Create Custom WordPress Dashboard Widget
```php
/**
* Create custom WordPress dashboard widget
*/
function dashboard_widget_function() {
echo '
Custom Dashboard Widget
Custom content here
';
}
function add_dashboard_widgets() {
wp_add_dashboard_widget( 'custom_dashboard_widget', 'Custom Dashoard Widget', 'dashboard_widget_function' );
}
add_action( 'wp_dashboard_setup', 'add_dashboard_widgets' );
```
## Remove All Dashboard Widgets
```php
/**
* Remove all dashboard widgets
*/
function remove_dashboard_widgets() {
global $wp_meta_boxes;
unset( $wp_meta_boxes['dashboard']['side']['core']['dashboard_quick_press'] );
unset( $wp_meta_boxes['dashboard']['normal']['core']['dashboard_incoming_links'] );
unset( $wp_meta_boxes['dashboard']['normal']['core']['dashboard_right_now'] );
unset( $wp_meta_boxes['dashboard']['normal']['core']['dashboard_plugins'] );
unset( $wp_meta_boxes['dashboard']['normal']['core']['dashboard_recent_drafts'] );
unset( $wp_meta_boxes['dashboard']['normal']['core']['dashboard_recent_comments'] );
unset( $wp_meta_boxes['dashboard']['side']['core']['dashboard_primary'] );
unset( $wp_meta_boxes['dashboard']['side']['core']['dashboard_secondary'] );
remove_meta_box( 'dashboard_activity', 'dashboard', 'normal' );
}
add_action( 'wp_dashboard_setup', 'remove_dashboard_widgets' );
```
## Include Navigation Menus
```php
/**
* Include navigation menus
*/
function register_my_menu() {
register_nav_menu( 'nav-menu', __( 'Navigation Menu' ) );
}
add_action( 'init', 'register_my_menu' );
```
Insert this where you want it to appear, and save the menu in **Appearance -> Menus**.
```php
wp_nav_menu( array( 'theme_location' => 'nav-menu' ) );
```
Here's the code for multiple menus:
```php
function register_my_menus() {
register_nav_menus(
array(
'new-menu' => __( 'New Menu' ),
'another-menu' => __( 'Another Menu' ),
'an-extra-menu' => __( 'An Extra Menu' ),
)
);
}
add_action( 'init', 'register_my_menus' );
```
## Insert Custom Login Logo
```php
/**
* Insert custom login logo
*/
function custom_login_logo() {
echo '
.login h1 a {
background-image: url(image.jpg) !important;
background-size: 234px 67px;
width:234px;
height:67px;
display:block;
}
';
}
add_action( 'login_head', 'custom_login_logo' );
```
## Modify Admin Footer Text
```php
/**
* Modify admin footer text
*/
function modify_footer() {
echo 'Created by you.';
}
add_filter( 'admin_footer_text', 'modify_footer' );
```
## Enqueue Styles and Scripts
```php
/**
* Enqueue styles and scripts
*/
function custom_scripts() {
wp_enqueue_style( 'bootstrap', get_template_directory_uri() . '/css/bootstrap.min.css', array(), '3.3.6' );
wp_enqueue_style( 'style', get_template_directory_uri() . '/css/style.css' );
wp_enqueue_script( 'bootstrap', get_template_directory_uri() . '/js/bootstrap.min.js', array('jquery'), '3.3.6', true );
wp_enqueue_script( 'script', get_template_directory_uri() . '/js/script.js' );
}
add_action( 'wp_enqueue_scripts', 'custom_scripts' );
```
## Enqueue Google Fonts
```php
/**
* Enqueue Google Fonts
*/
function google_fonts() {
wp_register_style( 'OpenSans', '//fonts.googleapis.com/css?family=Open+Sans:400,600,700,800' );
wp_enqueue_style( 'OpenSans' );
}
add_action( 'wp_print_styles', 'google_fonts' );
```
## Modify Excerpt Length
```php
/**
* Modify excerpt length
*/
function custom_excerpt_length( $length ) {
return 25;
}
add_filter( 'excerpt_length', 'custom_excerpt_length', 999 );
```
## Change Read More Link
```php
/**
* Change Read More link
*/
function custom_read_more_link() {
return 'Read More';
}
add_filter( 'the_content_more_link', 'custom_read_more_link' );
```
## Change More Excerpt
```php
/**
* Change More excerpt
*/
function custom_more_excerpt( $more ) {
return '...';
}
add_filter( 'excerpt_more', 'custom_more_excerpt' );
```
## Disable Emoji Mess
```php
/**
* Disable Emoji mess
*/
function disable_wp_emojicons() {
remove_action( 'admin_print_styles', 'print_emoji_styles' );
remove_action( 'wp_head', 'print_emoji_detection_script', 7 );
remove_action( 'admin_print_scripts', 'print_emoji_detection_script' );
remove_action( 'wp_print_styles', 'print_emoji_styles' );
remove_filter( 'wp_mail', 'wp_staticize_emoji_for_email' );
remove_filter( 'the_content_feed', 'wp_staticize_emoji' );
remove_filter( 'comment_text_rss', 'wp_staticize_emoji' );
add_filter( 'tiny_mce_plugins', 'disable_emojicons_tinymce' );
add_filter( 'emoji_svg_url', '__return_false' );
}
add_action( 'init', 'disable_wp_emojicons' );
function disable_emojicons_tinymce( $plugins ) {
return is_array( $plugins ) ? array_diff( $plugins, array( 'wpemoji' ) ) : array();
}
```
## Remove Comments
```php
/**
* Remove comments
*/
// Removes from admin menu
function my_remove_admin_menus() {
remove_menu_page( 'edit-comments.php' );
}
add_action( 'admin_menu', 'my_remove_admin_menus' );
// Removes from post and pages
function remove_comment_support() {
remove_post_type_support( 'post', 'comments' );
remove_post_type_support( 'page', 'comments' );
}
add_action( 'init', 'remove_comment_support', 100 );
// Removes from admin bar
function mytheme_admin_bar_render() {
global $wp_admin_bar;
$wp_admin_bar->remove_menu( 'comments' );
}
add_action( 'wp_before_admin_bar_render', 'mytheme_admin_bar_render' );
```
## Change Media Gallery URL
```php
/**
* Change Media Gallery URL
*/
if ( empty( get_option( 'upload_url_path' ) ) ) {
update_option( 'upload_url_path', 'http://assets.website.com/wp-content/uploads' );
}
```
Also, you can filter the option value before it's retrieved from the database, which is slightly better:
```php
/**
* Change Media Gallery URL
*/
add_filter( 'pre_option_upload_url_path', function() {
return 'http://assets.website.com/wp-content/uploads';
});
```
## Create Custom Thumbnail Size
```php
/**
* Create custom thumbnail size
*/
add_image_size( 'custom-thumbnail', 250, 250, true );
```
**Retrieve Thumbnail**
```php
$thumb = wp_get_attachment_image_src( get_post_thumbnail_id($post->ID), 'custom-thumbnail' );
echo $thumb[0];
```
Since WordPress 4.4.0, you can use:
```php
the_post_thumbnail_url( $size );
```
## Add Categories for Attachments
```php
/**
* Add categories for attachments
*/
function add_categories_for_attachments() {
register_taxonomy_for_object_type( 'category', 'attachment' );
}
add_action( 'init' , 'add_categories_for_attachments' );
```
## Add Tags for Attachments
```php
/**
* Add tags for attachments
*/
function add_tags_for_attachments() {
register_taxonomy_for_object_type( 'post_tag', 'attachment' );
}
add_action( 'init' , 'add_tags_for_attachments' );
```
## Add Custom Excerpt to Pages
```php
/**
* Add custom excerpt to pages
*/
function add_page_excerpt() {
add_post_type_support( 'page', array( 'excerpt' ) );
}
add_action( 'init', 'add_page_excerpt' );
```
## Create a Global String
```php
/**
* Create a global string
*/
function global_string() {
return 'String';
}
```
**Retrieve Field**
```php
echo global_string();
```
## Support Featured Images
```php
/**
* Support featured images
*/
add_theme_support( 'post-thumbnails' );
```
## Support Search Form
```php
/**
* Support search form
*/
add_theme_support( 'html5', array( 'search-form' ) );
```
## Excluding Pages From Search
```php
/**
* Excluding pages from search
*/
function exclude_pages_from_search() {
global $wp_post_types;
$wp_post_types['page']->exclude_from_search = true;
}
add_action( 'init', 'exclude_pages_from_search' );
```
## Disable xmlrpc.php
```php
/**
* Disable xmlrpc.php
*/
add_filter( 'xmlrpc_enabled', '__return_false' );
remove_action( 'wp_head', 'rsd_link' );
remove_action( 'wp_head', 'wlwmanifest_link' );
```
## Escape HTML in Posts
```php
/**
* Escape HTML in or tags.
*/
function escapeHTML($arr) {
if (version_compare(PHP_VERSION, '5.2.3') >= 0) {
$output = htmlspecialchars($arr[2], ENT_NOQUOTES, get_bloginfo('charset'), false);
}
else {
$specialChars = array(
'&' => '&',
'<' => '<',
'>' => '>'
);
// decode already converted data
$data = htmlspecialchars_decode( $arr[2] );
// escape all data inside
$output = strtr( $data, $specialChars );
}
if (! empty($output)) {
return $arr[1] . $output . $arr[3];
} else {
return $arr[1] . $arr[2] . $arr[3];
}
}
function filterCode($data) { // Uncomment if you want to escape anything within a tag
//$modifiedData = preg_replace_callback( '@()(.*)(<\/pre>)@isU', 'escapeHTML', $data );
$modifiedData = preg_replace_callback( '@()(.*)(<\/code>)@isU', 'escapeHTML', $data );
$modifiedData = preg_replace_callback( '@()(.*)(<\/tt>)@isU', 'escapeHTML', $modifiedData );
return $modifiedData;
}
add_filter( 'content_save_pre', 'filterCode', 9 );
add_filter( 'excerpt_save_pre', 'filterCode', 9 );
```
Modified from [Escape HTML](https://wordpress.org/plugins/escape-html/).
## Create Custom Global Settings
```php
/**
* Create custom global settings
*/
function custom_settings_page() { ?>
Custom Settings
ID ) ) {
$img_src = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'thumbnail' );
}
$excerpt = strip_tags( $post->post_content );
$excerpt_more = '';
if ( strlen($excerpt ) > 155) {
$excerpt = substr( $excerpt,0,155 );
$excerpt_more = ' ...';
}
$excerpt = str_replace( '"', '', $excerpt );
$excerpt = str_replace( "'", '', $excerpt );
$excerptwords = preg_split( '/[\n\r\t ]+/', $excerpt, -1, PREG_SPLIT_NO_EMPTY );
array_pop( $excerptwords );
$excerpt = implode( ' ', $excerptwords ) . $excerpt_more;
?>
array(
'name' => __( 'Custom Post' ),
),
'public' => true,
'hierarchical' => true,
'has_archive' => true,
'supports' => array(
'title',
'editor',
'excerpt',
'thumbnail'
),
'can_export' => true,
'taxonomies' => array(
'post_tag',
'category'
)
));
}
add_action('init', 'create_custom_post');
```
## Implement Preconnect to Google Fonts in Themes
```php
/**
* Implement preconnect to Google Fonts in themes
*/
function twentyfifteen_resource_hints( $urls, $relation_type ) {
// Checks whether the subject is carrying the source of fonts google and the `$relation_type` equals preconnect.
// Replace `enqueue_font_id` the `ID` used in loading the source.
if ( wp_style_is( 'enqueue_font_id', 'queue' ) && 'preconnect' === $relation_type ) {
// Checks whether the version of WordPress is greater than or equal to 4.7
// to ensure compatibility with older versions
// because the 4.7 has become necessary to return an array instead of string
if ( version_compare( $GLOBALS['wp_version'], '4.7-alpha', '>=' ) ) {
// Array with url google fonts and crossorigin
$urls[] = array(
'href' => 'https://fonts.gstatic.com',
'crossorigin',
);
} else {
// String with url google fonts
$urls[] = 'https://fonts.gstatic.com';
}
}
return $urls;
}
add_filter( 'wp_resource_hints', 'twentyfifteen_resource_hints', 10, 2 );
```
## Add Thumbnail Column to Post Listing
```php
/**
* Add thumbnail column to post listing
*/
add_image_size( 'admin-list-thumb', 80, 80, false );
function wpcs_add_thumbnail_columns( $columns ) {
if ( !is_array( $columns ) )
$columns = array();
$new = array();
foreach( $columns as $key => $title ) {
if ( $key == 'title' ) // Put the Thumbnail column before the Title column
$new['featured_thumb'] = __( 'Image');
$new[$key] = $title;
}
return $new;
}
function wpcs_add_thumbnail_columns_data( $column, $post_id ) {
switch ( $column ) {
case 'featured_thumb':
echo '';
echo the_post_thumbnail( 'admin-list-thumb' );
echo '';
break;
}
}
if ( function_exists( 'add_theme_support' ) ) {
add_filter( 'manage_posts_columns' , 'wpcs_add_thumbnail_columns' );
add_action( 'manage_posts_custom_column' , 'wpcs_add_thumbnail_columns_data', 10, 2 );
}
```
## Add Lead Class to First Paragraph
```php
/**
* Add lead class to first paragraph
*/
function first_paragraph( $content ) {
return preg_replace( '/
]+)?>/', '
', $content, 1 );
}
add_filter( 'the_content', 'first_paragraph' );
```
Adds a `lead` class to the first paragraph in [the_content](https://developer.wordpress.org/reference/functions/the_content/).
## Exclude Custom Post Type from Search
```php
/**
* Exclude custom post type from search
*/
function excludePages( $query ) {
if ( $query->is_search ) {
$query->set( 'post_type', 'post' );
}
return $query;
}
add_filter( 'pre_get_posts','excludePages' );
```
## Remove Query String from Static Resources
```php
/**
* Remove query string from static resources
*/
function remove_cssjs_ver( $src ) {
if ( strpos( $src, '?ver=' ) )
$src = remove_query_arg( 'ver', $src );
return $src;
}
add_filter( 'style_loader_src', 'remove_cssjs_ver', 10, 2 );
add_filter( 'script_loader_src', 'remove_cssjs_ver', 10, 2 );
```
## Modify jQuery
```php
/**
* Modify jQuery
*/
function modify_jquery() {
wp_deregister_script( 'jquery' );
wp_register_script( 'jquery', 'https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js', false, '3.2.1' );
wp_enqueue_script( 'jquery' );
}
if (!is_admin()) add_action('wp_enqueue_scripts', 'modify_jquery');
```
## Disable Website Field From Comment Form
```php
/**
* Disable website field from comment form
*/
function disable_website_field( $field ) {
if( isset($field['url']) ) {
unset( $field['url'] );
}
return $field;
}
add_filter('comment_form_default_fields', 'disable_website_field');
```
## Disable JSON REST API
```php
/**
* Disable JSON REST API
*/
add_filter('json_enabled', '__return_false');
add_filter('json_jsonp_enabled', '__return_false');
```
## Switch Post Type
```php
/**
* Switch post type
*/
function switch_post_type ( $old_post_type, $new_post_type ) {
global $wpdb;
// Run the update query
$wpdb->update(
$wpdb->posts,
// Set
array( 'post_type' => $new_post_type),
// Where
array( 'post_type' => $old_post_type )
);
}
```
## PHP Logger
```php
/**
* PHP Logger
*/
function php_logger( $data ) {
$output = $data;
if ( is_array( $output ) )
$output = implode( ',', $output );
// print the result into the JavaScript console
echo "console.log( 'PHP LOG: " . $output . "' );";
}
```
## Always Show Second Bar in TinyMCE
```php
/**
* Always show second bar in TinyMCE
*/
function show_tinymce_toolbar( $in ) {
$in['wordpress_adv_hidden'] = false;
return $in;
}
add_filter( 'tiny_mce_before_init', 'show_tinymce_toolbar' );
```
## Remove Admin Menu Items Depending on User Role
```php
/**
* Clone the administrator user role
*/
function clone_admin_role() {
global $wp_roles;
if ( ! isset( $wp_roles ) )
$wp_roles = new WP_Roles();
$adm = $wp_roles->get_role( 'administrator' );
// Add new "Client" role with all admin capabilities
$wp_roles->add_role( 'client', 'Client', $adm->capabilities );
}
add_action( 'init', 'clone_admin_role' );
/**
* Specify which admin menu items are visible for users with role "Client"
*/
function remove_dashboard_menus() {
if ( current_user_can( 'client' ) ) {
// Hide Updates under Dashboard menu
remove_submenu_page( 'index.php', 'update-core.php' );
// Hide Comments
remove_menu_page( 'edit-comments.php' );
// Hide Plugins
remove_menu_page( 'plugins.php' );
// Hide Themes, Customizer and Widgets under Appearance menu
remove_submenu_page( 'themes.php', 'themes.php' );
remove_submenu_page( 'themes.php', 'customize.php?return=' . urlencode( $_SERVER['REQUEST_URI'] ) );
remove_submenu_page( 'themes.php', 'widgets.php' );
// Hide Tools
remove_menu_page( 'tools.php' );
// Hide General Settings
remove_menu_page( 'options-general.php' );
}
}
add_action( 'admin_menu', 'remove_dashboard_menus' );
```
## Remove Admin Menu Items Depending on Email Address (domain)
```php
/**
* Specify which users can see admin menu items based on their email address
*/
function remove_dashboard_menus() {
$user_data = get_userdata( get_current_user_id() );
$user_email = isset( $user_data->user_email ) ? $user_data->user_email : '';
if ( ! strpos( $user_email, '@yourcompany.com' ) ) {
// Hide Updates under Dashboard menu
remove_submenu_page( 'index.php', 'update-core.php' );
// Hide Comments
remove_menu_page( 'edit-comments.php' );
// Hide Plugins
remove_menu_page( 'plugins.php' );
// Hide Themes, Customizer and Widgets under Appearance menu
remove_submenu_page( 'themes.php', 'themes.php' );
remove_submenu_page( 'themes.php', 'customize.php?return=' . urlencode( $_SERVER['REQUEST_URI'] ) );
remove_submenu_page( 'themes.php', 'widgets.php' );
// Hide Tools
remove_menu_page( 'tools.php' );
// Hide General Settings
remove_menu_page( 'options-general.php' );
}
}
add_action( 'admin_menu', 'remove_dashboard_menus' );
```
## Reorder Admin Menu Items
```php
/**
* Reorder admin menu
*/
function custom_menu_order( $menu_ord ) {
if ( ! $menu_ord ) { return true; }
return array(
'index.php',
'separator1',
'edit.php?post_type=page',
'edit.php',
'edit.php?post_type=[your_post_type_slug]',
'upload.php',
'edit-comments.php',
'separator2',
'themes.php',
'plugins.php',
'users.php',
'tools.php',
'options-general.php'
);
}
}
add_filter( 'custom_menu_order', 'custom_menu_order' );
add_filter( 'menu_order', 'custom_menu_order' );
```
## Exclude a Category From WordPress Loops
```php
/**
* Exclude a category from all WordPress loops
*/
add_action( 'pre_get_posts', function( $query ) { // anonymous callback
global $wp_query;
// Hard coded category ID, but can be dynamic: esc_attr(get_option('your-cat-id'));
$excluded_cat_id = 25;
// add category ID to existing, avoid overwriting it
$cat[] = $query->get( 'cat' );
$cat[] = "-" . $excluded_cat_id;
$query->set( 'cat', $cat );
}
});
```
## Disable the message - JQMIGRATE: Migrate is installed, version 1.4.1
```php
add_action('wp_default_scripts', function ($scripts) {
if (!empty($scripts->registered['jquery'])) {
$scripts->registered['jquery']->deps = array_diff($scripts->registered['jquery']->deps, ['jquery-migrate']);
}
});
```
## Load heavy 3rd-party scripts later for better performance
Lighthouse and similar performance analysis tools always complain about render-blocking scripts (and styles),
short cache TTL etc. Most of these scripts and styles come from 3rd-party sources which we can't control –
Google's own Tag Manager and Analytics, Facebook Pixel, other trackers and chat scripts etc. However, we
can load them only when a real user interacts with a page, significantly reducing the Time To Interactive
metric and scoring much higher performance results.
Depending on where you like these 3rd-party scripts to be, you can either use `wp_footer` action to print the
code in footer, or put it in your main `app.js` script which, in turn, is enqueued on `wp_enqueue_scripts` action.
```javascript
var fired = false;
window.addEventListener('scroll', () => {
if (fired === false) {
fired = true;
setTimeout(() => {
// Marketing scripts go here.
}, 1000) // 1000ms or 1s works fine, but you can adjust this timeout.
}
});
```