wp-includes/l10n.php:338Retrieves the translation of $text and escapes it for safe use in HTML output.
$textstring$domainstringoptional'default'stringfunction esc_html__( $text, $domain = 'default' ) { return esc_html( translate( $text, $domain ) );}Introduced in 2.8.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/l10n.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.