IDB counts should be Ints, not Doubles.

Acording to
https://developer.mozilla.org/en-US/docs/Web/API/IDBObjectStore/getAll#parameters
the max count is 2^32

Author: japgolly

api-reports/2_12.txt

@@ -13605,8 +13605,8 @@ IDBFactory[JC] def cmp(first: Any, second: Any): Int
 IDBFactory[JC] def databases(): js.Promise[js.Array[IDBDatabaseInfo]]
 IDBFactory[JC] def deleteDatabase(name: String): IDBOpenDBRequest[Unit]
 IDBFactory[JC] def open(name: String, version: Int?): IDBOpenDBRequest[IDBDatabase]
-IDBIndex[JC] def count(): IDBRequest[Double]
-IDBIndex[JC] def count(key: Any): IDBRequest[Double]
+IDBIndex[JC] def count(): IDBRequest[Int]
+IDBIndex[JC] def count(key: Any): IDBRequest[Int]
 IDBIndex[JC] def get(key: Any): IDBRequest[Any]
 IDBIndex[JC] def getKey(key: Any): IDBRequest[js.UndefOr[Any]]
 IDBIndex[JC] def keyPath: String
@@ -13625,7 +13625,7 @@ IDBKeyRange[JO] def only(value: Any): IDBKeyRange
 IDBKeyRange[JO] def upperBound(bound: Any, open: Boolean?): IDBKeyRange
 IDBObjectStore[JC] def add(value: Any, key: Any?): IDBRequest[Any]
 IDBObjectStore[JC] def clear(): IDBRequest[Unit]
-IDBObjectStore[JC] def count(key: Any?): IDBRequest[Double]
+IDBObjectStore[JC] def count(key: Any?): IDBRequest[Int]
 IDBObjectStore[JC] def createIndex(name: String, keyPath: Any, optionalParameters: IDBCreateIndexOptions?): IDBIndex
 IDBObjectStore[JC] def delete(key: Any): IDBRequest[Unit]
 IDBObjectStore[JC] def deleteIndex(indexName: String): Unit

api-reports/2_13.txt

@@ -13605,8 +13605,8 @@ IDBFactory[JC] def cmp(first: Any, second: Any): Int
 IDBFactory[JC] def databases(): js.Promise[js.Array[IDBDatabaseInfo]]
 IDBFactory[JC] def deleteDatabase(name: String): IDBOpenDBRequest[Unit]
 IDBFactory[JC] def open(name: String, version: Int?): IDBOpenDBRequest[IDBDatabase]
-IDBIndex[JC] def count(): IDBRequest[Double]
-IDBIndex[JC] def count(key: Any): IDBRequest[Double]
+IDBIndex[JC] def count(): IDBRequest[Int]
+IDBIndex[JC] def count(key: Any): IDBRequest[Int]
 IDBIndex[JC] def get(key: Any): IDBRequest[Any]
 IDBIndex[JC] def getKey(key: Any): IDBRequest[js.UndefOr[Any]]
 IDBIndex[JC] def keyPath: String
@@ -13625,7 +13625,7 @@ IDBKeyRange[JO] def only(value: Any): IDBKeyRange
 IDBKeyRange[JO] def upperBound(bound: Any, open: Boolean?): IDBKeyRange
 IDBObjectStore[JC] def add(value: Any, key: Any?): IDBRequest[Any]
 IDBObjectStore[JC] def clear(): IDBRequest[Unit]
-IDBObjectStore[JC] def count(key: Any?): IDBRequest[Double]
+IDBObjectStore[JC] def count(key: Any?): IDBRequest[Int]
 IDBObjectStore[JC] def createIndex(name: String, keyPath: Any, optionalParameters: IDBCreateIndexOptions?): IDBIndex
 IDBObjectStore[JC] def delete(key: Any): IDBRequest[Unit]
 IDBObjectStore[JC] def deleteIndex(indexName: String): Unit

src/main/scala/org/scalajs/dom/IDBTypes.scala

@@ -64,7 +64,7 @@ class IDBObjectStore extends js.Object {
     */
   def keyPath: String = js.native
 
-  def count(key: Any = js.native): IDBRequest[Double] = js.native
+  def count(key: Any = js.native): IDBRequest[Int] = js.native
 
   /** To determine if the add operation has completed successfully, listen for the transaction’s complete event in
     * addition to the IDBObjectStore.add request’s success event, because the transaction may still fail after the
@@ -196,12 +196,12 @@ class IDBIndex extends js.Object {
   /** The name of the object store referenced by this index. */
   def objectStore: IDBObjectStore = js.native
 
-  def count(key: Any): IDBRequest[Double] = js.native
+  def count(key: Any): IDBRequest[Int] = js.native
 
   /** If you want to see how many records are between keys 1000 and 2000 in an object store, you can write the
     * following:
     */
-  def count(): IDBRequest[Double] = js.native
+  def count(): IDBRequest[Int] = js.native
 
   /** Returns an IDBRequest object, and, in a separate thread, finds either the value in the referenced object store
     * that corresponds to the given key or the first corresponding value, if key is a key range.