Promises, pass additional parameters to then chain

Question

A promise, just for example:

var P = new Promise(function (resolve, reject) {   var a = 5;   if (a) {     setTimeout(function(){       resolve(a);     }, 3000);   } else {     reject(a);   } }); 

After we call the .then() method on the promise:

P.then(doWork('text')); 

Then doWork function looks like this:

function doWork(data) {   return function(text) {     // sample function to console log     consoleToLog(data);     consoleToLog(b);   } } 

How can I avoid returning an inner function in doWork, to get access to data from the promise and text parameters? Are there any tricks to avoiding the inner function?

Answer 1

Perhaps the most straightforward answer is:

P.then(function(data) { return doWork('text', data); }); 

Or, since this is tagged ecmascript-6, using arrow functions:

P.then(data => doWork('text', data)); 

I find this most readable, and not too much to write.