Use correct array type for Object.keys

Connormiha · Connormiha · commit c6e31a31da4b · 2019-10-15T23:14:14.000+03:00
diff --git a/lib/lib.es5.d.ts b/lib/lib.es5.d.ts
@@ -258,7 +258,7 @@ interface ObjectConstructor {
      * Returns the names of the enumerable string properties and methods of an object.
      * @param o Object that contains the properties and methods. This can be an object that you created or an existing Document Object Model (DOM) object.
      */
-    keys(o: object): string[];
+    keys<T extends object>(o: T): Array<Extract<keyof T, string>>;
 }
 
 /**

Original file line number	Diff line number	Diff line change
`@@ -258,7 +258,7 @@ interface ObjectConstructor {`
`258`	`258`	`* Returns the names of the enumerable string properties and methods of an object.`
`259`	`259`	`* @param o Object that contains the properties and methods. This can be an object that you created or an existing Document Object Model (DOM) object.`
`260`	`260`	`*/`
`261`		`- keys(o: object): string[];`
	`261`	`+ keys<T extends object>(o: T): Array<Extract<keyof T, string>>;`
`262`	`262`	`}`
`263`	`263`
`264`	`264`	`/**`