lib.dom: DOMatrix constructor accepts TypedArrays, not only Arrays.

⚙ Compilation target

n/a

⚙ Library

lib.dom

Missing / Incorrect Definition

DOMMatrix and DOMMatrixReadonly constructors are typed as accepting only number[] but they also accept TypedArrays in all browsers.

The following code works in all browsers:

Sample Code

new DOMMatrix(new Float32Array(16))

Documentation Link

The MDN documentation doesn't really mention this detail, and the spec mentions a "sequence" which to me isn't very specific. Isn't a TypedArray a "sequence of numbers"?

Perhaps the type should probably be ArrayLike<number>.

まず、DOMMatrix および DOMMatrixReadonly コンストラクターの lib.dom 宣言を見つけ、現在のパラメーター型を new DOMMatrix(new Float32Array(16)) で示される動作と比較します。利用可能であれば、関連する宣言テストを確認します。両方のコンストラクターが、通常の数値配列だけでなく型付き配列も受け入れれば完了です。