const assert = require('assert'); let defaultInterval = 100; let defaultTimeout = 2000; function sleep(ms) { return new Promise(resolve => setTimeout(resolve, ms)); } const eventually = async (fn, timeout = defaultTimeout, interval = defaultInterval) => { let start = Date.now(); let loop = async() => { try { await fn(); } catch (err) { if (Date.now() - start > timeout) { throw err; } await new Promise((resolve) => setTimeout(resolve, interval)) await loop(); } }; await loop(); }; module.exports = eventually;