Example - UnhandledPromiseRejectionWarning

test.js

function p1 (){
	return new Promise(function(resolve, reject){
		resolve({message: 'p1 resolved'});
	})
}

function test(){
	let unresolvePromise = Promise.reject({message: 'meant to be rejected'});
	unresolvePromise = p1();
	return unresolvePromise.then(function(data){
		return data;
	})
	.catch(function(err){
		console.log(err);
		return null
	})
	.then(function(data){
		console.log('caught all errors.')
		console.log(data)
	})
	.catch(function(err){
		console.log('Error Caught')
		console.log(err)
	})
}

test();