ChilliSniff
ChilliSniff•9mo 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
2 Replies
ChilliSniff
ChilliSniff•9mo ago
ok i just tested it, it works also in deno js but it gets not logged when i log the object
Deno AI Helper
Deno AI Helper•9mo ago
In Deno, the fetch() function returns a Response object that is based on the web standard Fetch API. According to the documentation, the Response object is read-only and its properties cannot be modified. This is why you cannot set a new property on a Response object in Deno. In your example, you're trying to set a new property asdf on the Response object o. 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.
Helpful Links: Fetch Data | Manual | Deno fetch | Runtime APIs | Deno Web Platform APIs | Manual | Deno HTTP Requests - Deno by Example
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