2013-12-23: A new blog post on ParallelJS (as Parallel JS is now called) supersedes this post.
Parallel JS will soon be included in Firefox Nightly builds. This project was initially called River Trail . It automatically parallelizes code that uses the ParallelArray type and its array-like methods (map() etc.). [Source of this post: “Parallel JS lands” by Nicholas D. Matsakis.]
- Medium term: All pure functions (that don’t mutate shared state, only data that they create and store in local variables) will be parallelizable; better diagnostics when parallelization is not possible.