URLSearchParams missing functionality

[mbest]

Bug Description

I'm trying to use the URLSearchParams API to parse a query string.

However, the only functionality that seems to work is passing an object to the URLSearchParams constructor and it's toString method.

Other operations such as passing a query string into the constructor, returns an empty _searchParams object. Furthermore, other parts of the API like the get and has methods throw a not implemented error.

Is the full API not available here?

---

Hermes git revision (if applicable):

• Microsoft.JavaScript.Hermes.Fat.0.1.20

React Native version:

• "react-native": "0.72.6",
• "react-native-windows": "0.72.30",

OS:

• Windows 11

Platform (most likely one of arm64-v8a, armeabi-v7a, x86, x86_64):

• x86

Steps To Reproduce

const paramStr = "foo=bar&foo=baz";
const searchParams = new URLSearchParams(paramStr);

console.log(searchParams.get("foo")); //should return first value "bar", throws not implemented error.

[acoates-ms]

These are polyfilled in RN 0.80+ https://github.com/facebook/react-native/blob/main/packages/react-native/Libraries/Blob/URLSearchParams.js