Promise reject handle

비동기 프로미스일때 에러 캐치

const resolvePromise = new Promise((resolve, reject) => {
		if(true){
	    resolve("resolve")
		}else{
			reject("reject")
		}
})
const rejectPromise = new Promise((resolve, reject) => {
		if(false){
	    resolve("resolve")
		}else{
			reject("reject")
		}
})

resolvePromise
.then((resolve) => {
	// success handle
	console.log('resolve',resolve)
})

rejectPromise
.catch((reject) => {
	// error handle
	console.log('reject',reject)
})

const resolvePromise = new Promise((resolve, reject) => {
		if(true){
	    resolve("resolve")
		}else{
			reject("reject")
		}
})
const rejectPromise = new Promise((resolve, reject) => {
		if(false){
	    resolve("resolve")
		}else{
			reject("reject")
		}
})

await resolvePromise


rejectPromise
.catch((reject) => {
	// error handle
	console.log('reject',reject)
})

const run = async () => {
	try{
				await resolvePromise // resolve
	}catch(e){

	}

	try{

		await rejectPromise
	}catch(e){
		//error handle
		console.log(e) // reject
	}
	
}
run()

try ~ catch 없이 reject가 실행될 경우 Promise 에러가 발생하게 된다

node:internal/process/promises:246 triggerUncaughtException(err, true /* fromPromise */); ^

[UnhandledPromiseRejection: This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). The promise rejected with the reason "reject".] { code: 'ERR_UNHANDLED_REJECTION' }