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It is about request and response.I can not know the video ,And … say res and req.1:32,
I can not know the video ,
And … say res and req.1:32why it doesn't say res and req , and the next let res = response and req=request ?
by the way ,2:49 …run the survey it . Where is the survey?
Steven Parker215,939 Points
At about 1:40 in the video he points out the "res" and "req" might not be completely clear, so he renames them to "response" and "request".
And what he says later is "server", not "survey". There is apparently an error in the captions and transcript. You might want to report it as a bug to the Support folks. If you're the first to do so, it should get you an "Exterminator" badge.