use generic default

Author: YuichiNukiyama

TS.fsx

@@ -807,8 +807,7 @@ module Emit =
     let EmitQuerySelectorOverloads (m: Browser.Method) =
         if matchSingleParamMethodSignature m "querySelector" "Element" "string" then
             Pt.Printl "querySelector<K extends keyof ElementTagNameMap>(selectors: K): ElementTagNameMap[K] | null;"
-            Pt.Printl "querySelector<E extends Element>(selectors: string): E | null;"
-            Pt.Printl "querySelector(selectors: string): Element | null;"
+            Pt.Printl "querySelector<E extends Element = Element>(selectors: string): E | null;"
 
     /// Emit overloads for the querySelectorAll method
     let EmitQuerySelectorAllOverloads (m: Browser.Method) =

baselines/dom.generated.d.ts

@@ -13736,8 +13736,7 @@ interface NavigatorUserMedia {
 
 interface NodeSelector {
     querySelector<K extends keyof ElementTagNameMap>(selectors: K): ElementTagNameMap[K] | null;
-    querySelector<E extends Element>(selectors: string): E | null;
-    querySelector(selectors: string): Element | null;
+    querySelector<E extends Element = Element>(selectors: string): E | null;
     querySelectorAll<K extends keyof ElementListTagNameMap>(selectors: K): ElementListTagNameMap[K];
     querySelectorAll<E extends Element>(selectors: string): NodeListOf<E>;
     querySelectorAll(selectors: string): NodeListOf<Element>;