Advanced Topics

This chapter will cover more advanced topics that may not be necessary for most users, but can be useful for those who need them.

It will cover:

• Managing asynchronous JS, including promises, and background tasks
• Call sync and async rust from inside the JS runtime, as well as transfering data between the two
• Extending the JS runtime with more advanced custom functionality (extensions and op2)
• Creating a static runtime instance
• Running multiple runtimes in parallel, and sharing runtime data between threads
• NodeJS compatibility, including using the NodeJS standard library
• Restricting access from inside a non-sandboxed JS runtime
• Using snapshots to increase startup time