What happens to a try/finally block inside a generator when .return() is called externally?

function* gen() { try { yield 1; } finally { console.log('cleanup'); } } const g = gen(); g.next(); g.return(); // logs 'cleanup'

Difficulty: 7/10

generator behavior, try/finally semantics, iterator return

Calling `.return()` on a generator will execute any pending `finally` block before terminating the generator, allowing cleanup operations to run.

try/finally with .return()

0-2 years experience

2-5 years experience