Deno•3y ago

cannot set property on fetch response

in the browser this works

let o = await fetch('https://deno.com');
o.asdf = 2
console.log(o.asdf)//2

let o = await fetch('https://deno.com');
o.asdf = 2
console.log(o.asdf)//2

but not in deno js

ChilliSniffOP•11/4/23, 12:05 AM

ok i just tested it, it works also in deno js but it gets not logged when i log the object

Deno AI Helper•11/4/23, 1:04 AM

In Deno, the

fetch()

fetch()

function returns a

Response

Response

object that is based on the web standard Fetch API. According to the documentation, the

Response

Response

object is read-only and its properties cannot be modified. This is why you cannot set a new property on a

Response

Response

object in Deno.

In your example, you're trying to set a new property on the

Response

Response

object . This is not allowed in Deno, hence it doesn't work.

If you need to store additional information related to a response, consider using a separate variable or data structure.