Roll your own JavaScript runtime

In this post we’ll walk through creating a custom JavaScript runtime. Let’s call it runjs. Think of it as building a (much) simplified version of deno itself. A goal of this post is to create a CLI that can execute local JavaScript files, read a file, write a file, remove a file and has simplified console API. Let’s get started. Update 2022-12-04: updated the code samples to the latest version of