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Do they really use MUMPS? Not something like ObjectScript?

I can’t speak for other companies, but I worked at Epic for a few years (left last year), and indeed MUMPS is still their bread and butter. In fact, I had not even heard about ObjectScript until reading this thread.

A few years ago, they _did_ develop a TypeScript wrapper framework (which was transpiled down into MUMPS). They heavily encouraged newer application code to use this, but it never caught on, was quietly abandoned after a bit.

Internally, MUMPS was often criticized or laughed at, but I doubt it’s going anywhere anytime soon.

Thanks for this interesting insight. Since they are apparently using Intersystems backends, I thought that ObjectScript might be a consequent choice; from my perspective it is rather comparable to JavaScript, so the TypeScript idea might have been stronger, but on the other hand might cause issues with (dynamically typed) globals.

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