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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 5693 | 'svgUrl' => apply_filters( 'emoji_svg_url', 'https://s.w.org/images/core/emoji/13.1.0/svg/' ), |
| 5694 | |
| 5695 | /** |
| 5696 | * Filters the extension of the emoji SVG files. |
| 5697 | * |
| 5698 | * @since 4.6.0 |
| 5699 | * |
| 5700 | * @param string $extension The emoji extension for svg files. Default .svg. |
| 5701 | */ |
| 5702 | 'svgExt' => apply_filters( 'emoji_svg_ext', '.svg' ), |
| 5703 | ); |
| 5704 | |
| 5705 | $version = 'ver=' . get_bloginfo( 'version' ); |
| 5706 | $type_attr = current_theme_supports( 'html5', 'style' ) ? '' : ' type="text/javascript"'; |
| 5707 | |
| 5708 | if ( SCRIPT_DEBUG ) { |
| 5709 | $settings['source'] = array( |
| 5710 | /** This filter is documented in wp-includes/class.wp-scripts.php */ |
| 5711 | 'wpemoji' => apply_filters( 'script_loader_src', includes_url( "js/wp-emoji.js?$version" ), 'wpemoji' ), |