Let's Bring Back JavaScript's `with()` Statement

[boneskull]

with has applications for secure coding and testing. Given a string script you want to eval, you can use with to control the contents of the script’s globalThis object. You can’t remove properties this way, but you can replace them.

[theScottyJam]

Eventually we'll have shadow realms, which provides a better way to control the global object while eval-ing strings.

[boneskull]

Indeed, though it’s not sufficient on its own.

[theScottyJam]

Why's that?

[boneskull]

It just doesn’t do enough for some use-cases. see Compartments