Login to manage your account

Your email Please enter a valid email address.

Password Forgot Password?

Please enter a valid password.

OR

Don't have an account yet? Sign up

Which of these blocks the Node.js event loop?

A fs.promises.readFile()
B fs.readFileSync()
C http.get()
D setImmediate()

Answer

fs.readFileSync()

Synchronous file system calls halt the single thread, delaying every other request. They are acceptable only at startup.

All NodeJS MCQs

Login to manage your account

Your email id Please enter a valid email address.

Password Forgot Password?

Please enter a valid password.

OR

Don't have an account yet? Sign up as

Jobseeker

Employer