[intl-tel-input] Add promise property.

types/intl-tel-input/index.d.ts

@@ -37,6 +37,8 @@ declare namespace IntlTelInput {
     }
 
     interface Plugin {
+        promise: Promise<void>;
+
         /**
          * Remove the plugin from the input, and unbind any event listeners.
          */

types/intl-tel-input/test/module-tests.ts

@@ -1,9 +1,24 @@
 import intlTelInput = require('intl-tel-input');
 
-// $ExpectType (node: Element, options?: Options) => Plugin
-intlTelInput;
+function test_import() {
+    // $ExpectType (node: Element, options?: Options) => Plugin
+    intlTelInput;
+}
 
-// $ExpectError
-const options: IntlTelInput.Options = {
-    allowDropdown: true
-};
+function test_IntlTelInput_not_visible() {
+    // $ExpectError
+    const options: IntlTelInput.Options = {
+        allowDropdown: true
+    };
+}
+
+function test_intlTelInputUtils_global() {
+    const input = document.querySelector('#phone');
+    const iti = intlTelInput(input, {
+        utilsScript: 'node_modules/intl-tel-input/build/js/utils.js'
+    });
+
+    iti.promise.then(() => {
+        console.log(intlTelInputUtils.numberFormat.E164);
+    });
+}