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 ...

JavaScript is a sprawling and ever-changing behemoth, and may be the single-most connective piece of web technology. From AI ...

Error handling is an essential topic in frontend development. Especially when dealing with asynchronous code, many developers instinctively resort to traditional try/catch syntax. While this approach ...

We’ll start with the most far-reaching addition, which the spec describes as “a new Iterator global with associated static and prototype methods for working with iterators.” The most exciting part of ...