dolu on Nostr: I don't know the context of your post, but of course mutex is useful in JS. If you ...

I don't know the context of your post, but of course mutex is useful in JS.
If you have an async function inside your function, you could need a mutex

Simple example is spend money, call this function 2 times in a short time and your user could spend money he doesn't have

async function spendMoney(amount) {
const balance = await getBalance()
if (balance > amount)
await spend(amount)
}