đ Async Code Inspection
forEach_trapExpression Under Await
Evaluated: users.forEach(...) → undefined
Runtime Wrap: Promise.resolve(undefined) (Settles at Tick 2)
âī¸ Runtime State & Queues
Step 1 of 5
Call Stack (Synchronous)
1 frame
Microtask Queue
0 tasks
Macrotask / Timer Queue
0 tasks
Floating / Unawaited Promises
0 floating
No unawaited background operations.
Console Output
đ Architectural Verdict & Fix Comparison
PREMATURE EXITâ ī¸ Premature Completion Bug
users.forEach() returns undefined synchronously. Therefore, await only pauses until Promise.resolve(undefined) settles on the very next microtask tick. The fetchUser async callbacks are left floating in the background unawaited, and "Done" logs before user data arrives.
Side-by-Side Solution Pattern
â Buggy Pattern (Awaiting non-promise / void return)
await users.forEach(async (u) => {
await fetchUser(u);
});
console.log('Done'); // Logs too early!
â
Corrected Pattern (Promise.all or for...of)
// Parallel execution:
await Promise.all(users.map(async (u) => {
await fetchUser(u);
}));
console.log('Done'); // Guaranteed after all settle!
Audited Execution Log & Trace
Download full JSON execution telemetry and markdown breakdown for team code reviews.