promise-unhandled-why.js

promise-unhandled-why.js

start()

async function start () {
    const promises = [
        new Promise((resolve, reject) => setTimeout(() => reject(0), 1000)),
        Promise.reject(1),
        Promise.reject(2)
    ]

    promises.forEach(p => p.catch(() => {})) // prevent unhandled

    for (const a of promises) {
        try {
            await a
        } catch {
            console.log('failed, continuing')
        }
    }
}