What is the effect of js assignment on parsing speed?

In

js:
let a = 1;
let b = 2;
let c = 3;
and
let a = 1, b = 2, c = 3; what are the effects of
on parsing speed? I hope a great god can talk about it from the point of view of compilation.

Feb.17,2022

doesn't matter, because the two (strictly speaking, the same) methods play the same role, and there are two differences in parsing:

  1. token parses 8 characters less than the former (two let + two spaces);
  2. The corresponding rules for
  3. syntax parsing are different. The former is three separate statements, while the latter has only one statement.

then the latter is theoretically a little faster than the former, both in terms of the number of characters and the number of state transitions of syntax rules.
( provided that the execution engine / translator does not directly optimize the former to the latter, after all, it is not strongly typed, and merging three assignments into one will not have any side effects )


is a little different in structure. Just put your code here and have a look at it
https://astexplorer.net/

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