When building web pages or apps, you will often encounter the two terms async and await in JavaScript. These are terms ...

So far we have been chaining together synchronous functions that return their final value quickly enough for it not to be a problem. The only asynchronous function involved in the chain has been the ...

var a, async = function(f) { setTimeout(function() { var r = 'step 2'; f(r); }, 1); }, myFunc = function() { a = 'step 1'; async(function(r) { a = r; // should reset ...

Works in Node.js and browsers. Any arguments to pass through to fn. Support for passing arguments on to the fn is provided in order to be able to avoid creating unnecessary closures. You probably ...