examplePromise.js

(function(){
	const promise = new Promise((resolve, reject) => resolve(100));
	promise
			.then(function(value){
				console.log('then =>' + value);
				})
			.then(() =>{
				return 200
			})
			.then(function(value){
				console.log('then =>' + value);
				return 300
				})
			.then(function(value){
				console.log('then =>' + value);
				throw 'Я иду в catch'
			})
			.catch(function(value){
				console.log('cath =>' + value);
				return 500
			})
			.then(function(value){
				console.log('then =>' + value);
				return 600
			})
			.then(function(value){
				console.log('then =>' + value);
				return 700
			});

})();

then =>100
then =>200
then =>300
cath =>Я иду в catch
then =>500
then =>600