NodeList should be generic instead of having NodeListOf

lib Update Request

I may be missing something, but I don't see why NodeListOf exists instead of just having NodeList itself be generic. Maybe it's a vestige from a time before generic parameter defaults.

NodeList should be able to be generic with a default value of Node.

Configuration Check

afaik, this is true of all versions of lib.dom.ts. I've checked up to 5.0

Missing / Incorrect Definition

I think this should be a backwards compatible change:

interface NodeList<TNode extends Node = Node> {
  readonly length: number;
  item(index: number): TNode | null;
  forEach(callbackfn: (value: TNode, key: number, parent: NodeList<TNode>) => void, thisArg?: any): void;
  [index: number]: TNode;
}

/** @deprecated Use NodeList */
interface NodeListOf<TNode extends Node> extends NodeList<TNode> {
  item(index: number): TNode;
}

Sample Code

let getDivs = (): NodeList<HTMLDivElement> => {/* ... */};

Documentation Link

N/A though removing NodeListOf would remove a type that's only present in lid.dom.d.ts, not the actual DOM APIs.

lib.dom.ts から始めて、NodeList と NodeListOf の宣言を見つけます。要求されたジェネリックのデフォルト値および非推奨の互換性エイリアスと比較します。NodeList が示された HTMLDivElement の使用方法をサポートし、既存の NodeListOf コードが引き続き互換性を保てば、作業は完了です。