wp-includes/customize/class-wp-customize-sidebar-section.php:42Gather the parameters passed to client JavaScript via JSON.
array public function json() { $json = parent::json(); $json['sidebarId'] = $this->sidebar_id; return $json; }Introduced in 4.1.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/customize/class-wp-customize-sidebar-section.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.