Possible addition to discussion of loops

[jdeisenberg]

Regarding https://rescript-lang.org/docs/manual/latest/control-flow#for-loops
It appears that the body of a for loop must evaluate to unit. This code:

let n: array<int> = []
for i in 1 to 3 {
  Js.Array2.push(n, i)
}

produces this error (the fix is to pipe to ignore):

[E] Line 3, column 2:

This has type: int
  Somewhere wanted: unit

Is this worth documenting?

[ryyppy]

Yeah that might be worth to be added