JavaScript编程之多次重试

async function retry(fn, times, ms) {

	try {
		await fn()
	} catch(err) {
		// have try once before
		if(times-1 <= 0) {
			return
		}
		setTimeout(async () => {
			retry(fn, times-1, ms)
		}, ms)
	}
}



async function hello() {
	console.log('run hello')

	await new Promise((resolve,reject)=> {
		setTimeout(() => {
			reject('bad hello')
		}, 1000)
	})

}


retry(hello, 4, 1000)