Synchronous delay in code execution

Question

I have a code which needs to be executed after some delay say 5000 ms.Currently I am using setTimeout but it is asynchronous and i want the execution to wait for its return.

Answer 1

Using the new Atomics API, you can start synchronous delays without performance spikes:

const sleep = milliseconds => Atomics.wait(new Int32Array(new SharedArrayBuffer(4)), 0, 0, milliseconds)

sleep(5000) // Sleep for 5 seconds

console.log("Executed after 5 seconds!")