I agree with you completely. I am confident on my ability to work in both JS and TS (or PHP, or Ruby, or [insert language here]), in the end they are tools, and

I agree with you completely. I am confident on my ability to work in both JS and TS (or PHP, or Ruby, or [insert language here]), in the end they are tools, and what defines the quality of a candidate is much more broad and sometimes nuanced. I'd love to get the perspective of someone hiring for roles where TS-experience is a strong requirement, especially if they ever had experience hiring devs with JS-only experience for senior roles.