antrion

When working with generators, two identical for-of loops don't show the same behaviour. Specifically, the first one will behave as expected, whereas the second one will terminate immediately. What is this?

I know that the iterator `g` will signal the value `done` after the first loop, but this behaviour was unexpected and really counterintuitive to me

Note: contrary to this example, for-of loops of arrays will work as I expected. It just doesn't make sense

Code example:

> function* gen() { yield* [1,2,3] }

undefined

> let g = gen()

undefined

> for (let el of g) console.log(el)

1

2

3

undefined

> for (let el of g) console.log(el)

undefined

edit: layout