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I saw a talk using interfaces to validate API calls/responses with typescript. I've been working in dynamically typed languages for a long time and I've built up habits that make it so I rarely run into issues where I am expecting a Number and get a String or that I can't determine this as the cause quickly, so typescript didn't appeal to me previously. Uisng interfaces to enforce uniform object structures is a game changer though and a use for typrscript that I didn't anticipate.

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