Wrapping Functions In Web Workers

It's commonplace, now that JavaScript has matured, and is continuing to mature, to implement heavy-duty data-crunching operations in the front-end. For instance, rather than calling an API to reduce a large set, it's easier to just reduce it in the browser. The wins are that you don't have to support an API to do this, and there's no network overhead. However, there's a new kind of overhead in that the browser will eat up valuable seconds while performing these long-running tasks. And since JavaScript code is single-threaded, these tasks diminish DOM responsiveness.