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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 |
|---|---|
| 683 | * Filter a Customize setting value for use in JavaScript. |
| 684 | * |
| 685 | * The dynamic portion of the hook name, `$this->id`, refers to the setting ID. |
| 686 | * |
| 687 | * @since 3.4.0 |
| 688 | * |
| 689 | * @param mixed $value The setting value. |
| 690 | * @param WP_Customize_Setting $this {@see WP_Customize_Setting} instance. |
| 691 | */ |
| 692 | $value = apply_filters( "customize_sanitize_js_{$this->id}", $this->value(), $this ); |
| 693 | |
| 694 | if ( is_string( $value ) ) |
| 695 | return html_entity_decode( $value, ENT_QUOTES, 'UTF-8'); |
| 696 | |
| 697 | return $value; |
| 698 | } |
| 699 | |
| 700 | /** |
| 701 | * Validate user capabilities whether the theme supports the setting. |