javascript - How to do asynchronous initialization in a RequireJS module -

i'm trying create module need needs fetch data url before initialization complete. suspect missing obvious how make requirejs wait until async call complete before require call satisifed.

// data module (function() {   papaparse("http://url.csv", {     complete: function(results) {       /* need return these results module after async call */     }   });    /* return here? */ })  // main require(["data"], function(d) {   /* displays "undefined"  becase async call not complete yet */   console.log(d); }) 

there official plugin dedicated task: text

instead of splitting process 2 steps you'd define csv data needed dependency, in spirit of amd/requirejs:

require(["./csvprocessor", "text!./url.csv"], function(csvprocessor, csvdatastring) {   var data = processor.process(csvdatastring); }) 

note module's url still affected xhr limitations, per the documentation, data file need hosted on same domain app running (unless using cors, etc.).