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import net from 'node:net'; export default async function isPortReachable(port, {host, timeout = 1000} = {}) { if (typeof host !== 'string') { throw new TypeError('Specify a `host`'); } const promise = new Promise(((resolve, reject) => { const socket = new net.Socket(); const onError = () => { socket.destroy(); reject(); }; socket.setTimeout(timeout); socket.once('error', onError); socket.once('timeout', onError); socket.connect(port, host, () => { socket.end(); resolve(); }); })); try { await promise; return true; } catch { return false; } }