Which answer is correct?

Use `while (Date.now() < start + 2000) {}`. This busy-waits for 2 seconds.

— blocking_fan

Use `setTimeout(callback, 2000)`. Put your "next line" code in the callback.

— callback_style

Create a promise-based sleep: ``` const sleep = ms => new Promise(r => setTimeout(r, ms)); await sleep(2000); ``` This pauses async execution without blocking the event loop.

— async_sleeper

Use `Atomics.wait(new Int32Array(new SharedArrayBuffer(4)), 0, 0, 2000)`. This actually blocks the thread.

— low_level_dev