wp-includes/script-loader.php:1956Loads localized data on print rather than initialization.
function wp_just_in_time_script_localization() { wp_localize_script( 'autosave', 'autosaveL10n', array( 'autosaveInterval' => AUTOSAVE_INTERVAL, 'blog_id' => get_current_blog_id(), ) ); wp_localize_script( 'mce-view', 'mceViewL10n', array( 'shortcodes' => ! empty( $GLOBALS['shortcode_tags'] ) ? array_keys( $GLOBALS['shortcode_tags'] ) : array(), ) ); wp_localize_script( 'word-count', 'wordCountL10n', array( 'type' => wp_get_word_count_type(), 'shortcodes' => ! empty( $GLOBALS['shortcode_tags'] ) ? array_keys( $GLOBALS['shortcode_tags'] ) : array(), ) );}Introduced in 2.5.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/script-loader.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.