Middle+
/** * Write an asynchronous function * that will "sleep" for a specified number of milliseconds, * and then complete successfully */ function sleep(duration) { } // Example const startTime = Date.now(); console.log("Start sleeping..."); sleep(2000).then(() => { console.log("Woke up after 2 seconds!"); console.log("Time passed: ", Date.now() - startTime); }); sleep(1000).then(() => { console.log("Woke up after 1 second!"); console.log("Time passed: ", Date.now() - startTime); });
sobes.tech AI
Answer from AI
The sleep function should return a Promise that resolves after a specified number of milliseconds. This can be implemented using setTimeout inside a Promise:
function sleep(duration) {
return new Promise(resolve => {
setTimeout(resolve, duration);
});
}
The example usage from the question will work correctly, displaying messages after the specified wait time.