What is the purpose of the setTimeout function?
Executes a function repeatedly at fixed intervals
Executes a function once after a delay
Executes a function immediately
Cancels a delayed function
What does the then() method of a Promise do?
Handles rejected promises
Cancels an unresolved promise
Converts a callback to a promise
Handles fulfilled promises
Which method allows handling errors in promises?
What does async do when used with a function?
Makes the function synchronous
Automatically wraps the function's return value in a promise
Stops the execution of the function
Immediately executes the function
What is the purpose of the await keyword?
Delays code execution indefinitely
Converts a promise into a callback
Pauses execution of an async function until a promise resolves
Handles rejected promises
What is the difference between setTimeout and setInterval?
setTimeout runs once, while setInterval executes repeatedly at intervals
setTimeout executes repeatedly, while setInterval runs once
Both execute functions immediately
Both are used for canceling asynchronous tasks
What is the event loop's role in JavaScript?
To execute synchronous code
To prioritize promises over callbacks
To manage and execute asynchronous operations in the call stack
Which queue has a higher priority in the JavaScript event loop?
What is the output of the following code?
JavaScript
console.log("A");
setTimeout(() =>
console.log("B"), 0);
Promise.resolve().then(() =>
console.log("C"));
console.log("D");
What is the purpose of Promise.finally()?
Executes only when a promise is fulfilled
Executes only when a promise is rejected
Cancels unresolved promises
Executes after a promise is settled, regardless of its state
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