Promises & then/catch

What demonstrates this code about Promise timing?

let resolveA, resolveB;
const a = new Promise(r => resolveA = r);
const b = new Promise(r => resolveB = r);

resolveB(2);
resolveA(1);

Promise.race([a, b]).then(console.log);

Promises execute in creation order
Promises execute in resolution order
This code demonstrates Promise timing characteristics: 1) Promises settle in the order they're resolved, not created, 2) Resolution order determines race() results, 3) Promise creation and resolution are separate concerns, 4) Microtask queue ordering affects Promise execution, 5) Important for understanding Promise concurrency behavior, 6) Critical for implementing proper async control flow.
Promise.race is non-deterministic
Promises execute synchronously

Next Question (21/21)