Function mozjs::jsapi::JS_GetTypedArrayByteOffset

pub unsafe extern "C" fn JS_GetTypedArrayByteOffset(
    obj: *mut JSObject,
) -> usize

Return the byte offset from the start of an ArrayBuffer to the start of a typed array view.

|obj| must have passed a JS_IsTypedArrayObject/JS_Is*Array test, or somehow be known that it would pass such a test: it is a typed array or a wrapper of a typed array, and the unwrapping will succeed.