What does this Syntactic sugar mean?
It means that start is optional, but if you want to use the start parameter, do you have to have the encoding parameter?
This is the unique Syntactic sugar in node?
If you look at the nesting relationship between brackets, you can basically infer your understanding.
First of all
Within, then she is naturally an optional parameter!
Keep looking back, then
encoding, [start]What Do You Mean? again Obviously can feel, is set up
encodingIn the case of, there is an optional
This is a common expression: