Why do I get a wrong keyName in Node.js?
<p>For instance, I send a request like { "arr": [ 1, 2, 3, 4 ] } in front-end.Then I get a request.body in Node.js.But the request.body shows as { "arr[]": [ 1, 2, 3, 4 ] }.I can't find out what the wrong it is.I just receive a wrong keyname in my body's ojbect.How to deal with it?</p>