URLSearchParams

[nmaves]

I feel like this might be missing a type. Per the MDN docs on URLSearchParams you should be able to initialize it with a FormData. I believe that we might want to add Iterable<[string, string]> or even just FormData to the allowed init types.

The code actually works but the types are not allowed. In your console, the following code works.

let formData = new FormData()
let urlSearchParams = new UrlSearchParams(formData)

TypeScript/lib/lib.dom.d.ts

Lines 14942 to 14946 in 20c93d3

	declare var URLSearchParams: {
	prototype: URLSearchParams;
	new(init?: string[][] | Record<string, string> | string | URLSearchParams): URLSearchParams;
	toString(): string;
	};

[MartinJohns]

1. You forgot to fill out the issue template.
2. See the discussions in allow constructing URLSearchParams directly from FormData #30584. FormData includes File, which would not be valid.
3. You might want to follow fix: add FormData to URLSearchParams constructor TypeScript-DOM-lib-generator#880.

[nmaves]

Closing as there are other issues that are tracking this.