[aphexairlines]

This is a JavaScript keyword and there's nothing TypeScript-specific in the blog post.

[OscarDC]

I get you, but it's both a TypeScript and JavaScript feature, and more importantly TypeScript is including it in its next official release whereas it is still not part of ECMAScript (though close, at stage 3).

So speaking specifically of a new TypeScript feature is justified here.

[belk]

typescript is introducing it in a polyfill, which is going to be how a lot of people will first get to use the feature

[tantalor]

How does the polyfill work? How does TS know the object can be disposed?

[OJFord]

The article doesn't hide that, and there is something TS-specific: the information that it (that JavaScript version) will come in v5.2.

I think it's fair enough if you're coming from a TS perspective, writing TS (specifically) or blogging about it. Obviously there's overlap.