[Sephr]

The title is very misleading. Deno is not written in JavaScript and is never referred to as Deno.js in any official sources. Deno is written in Rust.

[benatkin]

Much of Node.js is written in C, yet it's still called Node.js.

Deno has some JavaScript/TypeScript in it. On GitHub https://github.com/denoland/deno is 22.8% JavaScript and 13.2% TypeScript, and https://github.com/denoland/deno_std is 68.2% JavaScript and 31.6% TypeScript.

So to me the title is misleading about the name (Deno is certainly not named Deno.js), but not about what Deno is written in.

[brundolf]

Node isn't written in JS either, but people call it Node.js. They used the wrong name, but it's a pretty huge leap to call it "misleading".