Created
July 29, 2024 15:03
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This is like a promise you can that resets itself. Acts as a queue.
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| type GateKeeper = { | |
| wait: () => Promise<void> | |
| pass: () => void | |
| } | |
| const createGateKeeper = (): GateKeeper => { | |
| let resolver!: () => void | |
| let promise!: Promise<void> | |
| const reset = () => { | |
| promise = new Promise<void>((res) => { | |
| resolver = res | |
| }) | |
| } | |
| reset() | |
| const queue = (async function* iife() { | |
| while (true) { | |
| // eslint-disable-next-line no-await-in-loop | |
| await promise | |
| reset() | |
| yield | |
| } | |
| })() | |
| return { | |
| wait: () => queue.next().then(noop), | |
| pass: () => resolver(), | |
| } | |
| } | |
| const gateKeeper = createGateKeeper() | |
| const f1 = async () => { | |
| await gateKeeper.wait() | |
| console.log('My turn!') | |
| } | |
| const f2 = () => { | |
| gateKeeper.pass() | |
| console.log('I\'m passing!') | |
| } | |
| f1() | |
| f2() | |
| /** | |
| * I'm passing! | |
| * My turn! | |
| */ |
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