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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 |
|---|---|
| 4962 | 'svgUrl' => apply_filters( 'emoji_svg_url', 'https://s.w.org/images/core/emoji/2/svg/' ), |
| 4963 | |
| 4964 | /** |
| 4965 | * Filters the extension of the emoji SVG files. |
| 4966 | * |
| 4967 | * @since 4.6.0 |
| 4968 | * |
| 4969 | * @param string The emoji extension for svg files. Default .svg. |
| 4970 | */ |
| 4971 | 'svgExt' => apply_filters( 'emoji_svg_ext', '.svg' ), |
| 4972 | ); |
| 4973 | |
| 4974 | $version = 'ver=' . $wp_version; |
| 4975 | |
| 4976 | if ( SCRIPT_DEBUG ) { |
| 4977 | $settings['source'] = array( |
| 4978 | /** This filter is documented in wp-includes/class.wp-scripts.php */ |
| 4979 | 'wpemoji' => apply_filters( 'script_loader_src', includes_url( "js/wp-emoji.js?$version" ), 'wpemoji' ), |
| 4980 | /** This filter is documented in wp-includes/class.wp-scripts.php */ |