Based on what I understand of the rating methodology, though, I'm still very surprised that Ada beats TypeScript. My understanding is that it's basically a measure of search results, and I would expect TypeScript to have vastly more of those than Ada, given that most Ada applications aren't going to be publicly discussed.

I suspect that it has to do with names—Ada is highly overloaded in ways that are adjacent to programming (ADA, Ada Lovelace) and is a short enough word that Google may ignore it. A naive search for `ada programming` turns up 896 million results, compared to 28 million for `typescript programming`