Merge pull request #170 from YuichiNukiyama/fix_queryselector

fix querySelector method

Author: mhegazy

TS.fsx

@@ -795,13 +795,13 @@ 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(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) =
         if matchSingleParamMethodSignature m "querySelectorAll" "NodeList" "string" then
             Pt.Printl "querySelectorAll<K extends keyof ElementListTagNameMap>(selectors: K): ElementListTagNameMap[K];"
-            Pt.Printl "querySelectorAll(selectors: string): NodeListOf<Element>;"
+            Pt.Printl "querySelectorAll<E extends Element = Element>(selectors: string): NodeListOf<E>;"
 
     let EmitHTMLElementTagNameMap () =
         Pt.Printl "interface HTMLElementTagNameMap {"

baselines/dom.generated.d.ts

@@ -13746,9 +13746,9 @@ interface NavigatorUserMedia {
 
 interface NodeSelector {
     querySelector<K extends keyof ElementTagNameMap>(selectors: K): ElementTagNameMap[K] | 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(selectors: string): NodeListOf<Element>;
+    querySelectorAll<E extends Element = Element>(selectors: string): NodeListOf<E>;
 }
 
 interface RandomSource {