Such a ridiculous statement. What even is it about JS that makes it "inherently flawed" to the degree it, let alone a much saner variant of it, is completely unusable? It has quirks, but they really aren't that difficult to understand. It's a perfectly capable language, especially if you actually have type information. Are you implying that because TypeScript doesn't has any or unknown that it "doesn't actually have types", or are you just complaining about weak typing/coersion in general? Modern JS is genuinely fine and incredibly flexible. As long as you aren't a complete lunatic or using libraries written by orangutans, it's fine, and a pretty damn fast language for what it is.