How to use .then() in node.js?

Question

I\'m a complete beginner in node.js. I\'ve just read we can use .then() function for executing several functions in particular order. I was going t

Answer 1

the .then() function is used for the PROMISE (so for async function ) when you need to KNOW WHEN IT'S FINISHED (and it is finished ok .. or KO ) ..so you have

MYASYNCFUNCTION().then(function(response({

 //do what you want when it's finish and everything ok .. with the result

}).catch(function(error){
 // it's finshed but with error
})

IN your example .. you don't have .then() function cause they're simple function .. but if you want to have it (i don't know why . they've not async stuff inside .. but you can)

so

// install it via npm install promise

var Promise = require('promise');

function one(){
var promise = new Promise(function (resolve, reject) {
  resolve('one');
  });
});

}

and then

one().then(function(resp){ console.log(resp) })

Hope it helps you!!