Attempt to improve types.

Author: jorgebucaran

classcat.d.ts

@@ -1,16 +1,18 @@
 export as namespace Classcat
 
-export interface ClassSet {
-  [key: string]: boolean | any | ClassSet
+export interface ClassObject {
+  [key: string]: boolean | any
 }
 
-export type Class = string | number | ClassSet
+export interface ClassArray extends Array<Class> {}
+
+export type Class = string | number | ClassObject | ClassArray
 
 /**
  * Classcat is a unary function (accepts a single argument) expecting an array of elements or an object of keys and returns a string that is the result of joining all elements of the array or object keys.
  *
  * If the value associated with a given key is falsey, the key will be ignored.
  *
  * @param classes
-*/
-export default function(classes: Class | Class[]): string
+ */
+export default function(classes: Class): string

tests/ts/index.test.ts

@@ -2,21 +2,20 @@ import cc from "classcat"
 
 let className: string
 
+className = cc(0)
+
 className = cc("btn")
 
-className = cc(12)
+className = cc(["btn", "btn-active"])
+
+className = cc([["btn", "btn-active"]])
 
 className = cc({
   btn: true
 })
 
-className = cc(["btn", "btn-active"])
-
 className = cc([
-  "btn",
   {
-    btn: {
-      "--success": true
-    }
+    btn: true
   }
 ])