15 lines
289 B
JavaScript
15 lines
289 B
JavaScript
let log = [];
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let resolve;
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const main = new Promise(r => { resolve = r });
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(async function poll(count) {
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log.push(await Promise.resolve(count))
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if (count < 3) setTimeout(poll, 10, count + 1);
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else resolve();
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})(0)
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return main.then(() => {
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expect(log).toEqual([0, 1, 2, 3]);
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});
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