This is mostly useful to developers that don’t develop on windows. Typically server side and browser based JavaScript programs are deployed on Linux systems in production.

Today if I want to reliably automate some scripting I do NOT use shell scripting because it makes a bunch of implicit dependencies on existing system.

Instead I write these utility scripts in either JavaScript or PHP depending on the project and this seems to give JavaScript a slightly nicer consistent interface to perform basic functionality, built directly into the runtime.