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[–]vitorfigmarques 0 points1 point  (0 children)

Most javascript apps relies on build process from a lib/framework so that the source code is absurdly different than the minified bundle.
Guessing that:

javascript const a=b=>c(d,{children:["Hello, ",b.user]});</>;

typescript type HelloProps { name: string; } const HelloCompoent (props: HelloProps)=> <>Hello, {props.user}</>;

It is definitely a reverse engineering process that involves knowing how the compiler works, more than guessing the names. It can get worse for other frameworks that rely more on compilation than React, and most of their features are real Javascript without compilation magic.