https://api.jquery.com/outerheight/#outerHeight-functionindex--height specify only `Type: Function()` https://api.jquery.com/innerheight/#innerHeight-function is more specific: `Type: Function( Integer index, Number height ) => String or Number` I think for outerHeight it should be the same?