With AJAX in onreadystatechange you can not only check whether you got full response, or an error, but also if you got partial response. It is useful for generating progress information if the response is slow (you receive results in spurts) - but of known final size, or for generating partial results.
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With AJAX in
onreadystatechangeyou can not only check whether you got full response, or an error, but also if you got partial response. It is useful for generating progress information if the response is slow (you receive results in spurts) - but of known final size, or for generating partial results.