Use correct array type for Object.keys

Connormiha · Connormiha · commit eabee0a4bd67 · 2019-10-15T23:21:11.000+03:00
diff --git a/src/lib/es5.d.ts b/src/lib/es5.d.ts
@@ -238,7 +238,7 @@ 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
`@@ -238,7 +238,7 @@ interface ObjectConstructor {`
`238`	`238`	`* Returns the names of the enumerable string properties and methods of an object.`
`239`	`239`	`* @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.`
`240`	`240`	`*/`
`241`		`- keys(o: object): string[];`
	`241`	`+ keys<T extends object>(o: T): Array<Extract<keyof T, string>>;`
`242`	`242`	`}`
`243`	`243`
`244`	`244`	`/**`