exp. with Foundry recently, and it's cool, but I'm a bit confused as to why testing in Solidity is preferred when it's highly likely interactions w/ your contract will need to use JS/TS anyway.

3P apps call your contract directly via frontend or they have a contract that calls your contract that itself uses a frontend

/bettik founder /outercorps stalwart | ex-binance, ex-celsiusX

Test contract functionality and security in Solidity, test the frontend with js/ts. I’ve done both but once I used Foundry I never wanted to go back to testing my contracts with js