Stas Parshin Stas Parshin - 1 year ago 72
Node.js Question

What is the Q equivalent for Bluebird's .spread?

In Bluebird, when a promise resolves and we resolve it with an array of values - there's an option to use .spread function to separate values back from the array and pass them as arguments for the next .then, like so:

return new Promise(function(resolve, reject){

var val1 = 1;
var val2 = 2;

//Since resolve takes only 1 arg - we join these into array
resolve([val1, val2]);

.spread(function(val1, val2){
//val1 and val2 are separate again

How do I do this with Q?

It seems to also have a .spread function but it's purpose is to be applied on an array of Promises.

Answer Source

spread(). Just as in bluebird.