I think you're misunderstanding the billion dollar mistake. It was not statically tracking null-references. In JS, everything is dynamic so it doesn't apply, an

I think you're misunderstanding the billion dollar mistake. It was not statically tracking null-references. In JS, everything is dynamic so it doesn't apply, and TS does check them. > My goal was to ensure that all use of references should be absolutely safe, with checking performed automatically by the compiler. But I couldn't resist the temptation to put in a null reference https://en.wikipedia.org/wiki/Tony_Hoare https://en.wikipedia.org/wiki/Tony_Hoare (Emphasis mine)