javascript - Is it a good idea to resolve promises for all arguments when writing a function? -

if project uses promise lot, idea resolve promises arguments when writing function? example,

function foo (arg1, arg2, arg3) {     // stuff arg1, arg2, arg3 }  let parg1 = getarg1async(); let parg2 = parg1.then(calcarg2async); let parg3 = getarg3async();  let p = promise.join(parg1, parg2, parg3, foo); 

becomes

function foo(parg1, parg2, parg3) {     return promise.join(parg1, parg2, parg3, function(arg1, arg2, arg3) {         // stuff arg1, arg2, arg3     }); }  let parg1 = getarg1async(); let parg2 = parg1.then(calcarg2async); let parg3 = getarg3async();  let p = foo(parg1, parg2, parg3); 

this called "lifting" method. it's useful , known technique , can write helper you:

function lift(fn){     return function(){        return promise.all.call(this, arguments).then(fn);     } } 

or in "modern node" , ignoring this:

const lift = fn => (...args) => promise.all(args).then(fn) 

which let do:

var lifted = lift(myfn); // fn run when promises resolve  // , return promise value. var res = lifted(promise1, promise2);