From 2b1789b95d5b124279a4d5954906d3bb549e9417 Mon Sep 17 00:00:00 2001
From: Francesco Trotta <github@fasttime.org>
Date: Fri, 12 Jul 2024 17:03:25 +0200
Subject: [PATCH] New feature `ITERATOR_HELPER`

---
 api-doc/interfaces/FeatureAll.md              | 12 ++++++++++++
 api-doc/interfaces/FeatureConstructor.md      | 16 ++++++++++++++++
 api-doc/type-aliases/ElementaryFeatureName.md |  2 +-
 src/lib/features.js                           | 12 +++++++++++-
 4 files changed, 40 insertions(+), 2 deletions(-)

diff --git a/api-doc/interfaces/FeatureAll.md b/api-doc/interfaces/FeatureAll.md
index ee606c27..ae425190 100644
--- a/api-doc/interfaces/FeatureAll.md
+++ b/api-doc/interfaces/FeatureAll.md
@@ -564,6 +564,18 @@ Available in Chrome, Edge, Firefox, Internet Explorer 11, Safari 10+, Opera, And
 
 ***
 
+### ITERATOR\_HELPER
+
+> **ITERATOR\_HELPER**: [`ElementaryFeature`](ElementaryFeature.md)
+
+Availability of iterator helpers.
+
+#### Remarks
+
+This feature is not available in any of the supported engines.
+
+***
+
 ### LOCALE\_INFINITY
 
 > **LOCALE\_INFINITY**: [`ElementaryFeature`](ElementaryFeature.md)
diff --git a/api-doc/interfaces/FeatureConstructor.md b/api-doc/interfaces/FeatureConstructor.md
index 1858a514..d982915d 100644
--- a/api-doc/interfaces/FeatureConstructor.md
+++ b/api-doc/interfaces/FeatureConstructor.md
@@ -874,6 +874,22 @@ Available in Chrome, Edge, Firefox, Internet Explorer 11, Safari 10+, Opera, And
 
 ***
 
+### ITERATOR\_HELPER
+
+> **ITERATOR\_HELPER**: [`ElementaryFeature`](ElementaryFeature.md)
+
+Availability of iterator helpers.
+
+#### Remarks
+
+This feature is not available in any of the supported engines.
+
+#### Inherited from
+
+[`FeatureAll`](FeatureAll.md).[`ITERATOR_HELPER`](FeatureAll.md#iterator_helper)
+
+***
+
 ### LOCALE\_INFINITY
 
 > **LOCALE\_INFINITY**: [`ElementaryFeature`](ElementaryFeature.md)
diff --git a/api-doc/type-aliases/ElementaryFeatureName.md b/api-doc/type-aliases/ElementaryFeatureName.md
index 5f5efca0..2a9ee584 100644
--- a/api-doc/type-aliases/ElementaryFeatureName.md
+++ b/api-doc/type-aliases/ElementaryFeatureName.md
@@ -4,6 +4,6 @@
 
 # Type Alias: ElementaryFeatureName
 
-> **ElementaryFeatureName**: `"ANY_DOCUMENT"` \| `"ANY_WINDOW"` \| `"ARRAY_ITERATOR"` \| `"ARROW"` \| `"AT"` \| `"ATOB"` \| `"BARPROP"` \| `"CAPITAL_HTML"` \| `"CONSOLE"` \| `"DOCUMENT"` \| `"DOMWINDOW"` \| `"ESC_HTML_ALL"` \| `"ESC_HTML_QUOT"` \| `"ESC_HTML_QUOT_ONLY"` \| `"ESC_REGEXP_LF"` \| `"ESC_REGEXP_SLASH"` \| `"FF_SRC"` \| `"FILL"` \| `"FLAT"` \| `"FROM_CODE_POINT"` \| `"FUNCTION_19_LF"` \| `"FUNCTION_22_LF"` \| `"GENERIC_ARRAY_TO_STRING"` \| `"GLOBAL_UNDEFINED"` \| `"GMT"` \| `"HISTORY"` \| `"HTMLAUDIOELEMENT"` \| `"HTMLDOCUMENT"` \| `"IE_SRC"` \| `"INCR_CHAR"` \| `"INTL"` \| `"LOCALE_INFINITY"` \| `"LOCALE_NUMERALS"` \| `"LOCALE_NUMERALS_EXT"` \| `"LOCATION"` \| `"NAME"` \| `"NODECONSTRUCTOR"` \| `"NO_FF_SRC"` \| `"NO_IE_SRC"` \| `"NO_OLD_SAFARI_ARRAY_ITERATOR"` \| `"NO_V8_SRC"` \| `"OBJECT_ARRAY_ENTRIES_CTOR"` \| `"OBJECT_L_LOCATION_CTOR"` \| `"OBJECT_UNDEFINED"` \| `"OBJECT_W_CTOR"` \| `"OLD_SAFARI_LOCATION_CTOR"` \| `"PLAIN_INTL"` \| `"REGEXP_STRING_ITERATOR"` \| `"SELF_OBJ"` \| `"SHORT_LOCALES"` \| `"STATUS"` \| `"UNDEFINED"` \| `"V8_SRC"` \| `"WINDOW"`
+> **ElementaryFeatureName**: `"ANY_DOCUMENT"` \| `"ANY_WINDOW"` \| `"ARRAY_ITERATOR"` \| `"ARROW"` \| `"AT"` \| `"ATOB"` \| `"BARPROP"` \| `"CAPITAL_HTML"` \| `"CONSOLE"` \| `"DOCUMENT"` \| `"DOMWINDOW"` \| `"ESC_HTML_ALL"` \| `"ESC_HTML_QUOT"` \| `"ESC_HTML_QUOT_ONLY"` \| `"ESC_REGEXP_LF"` \| `"ESC_REGEXP_SLASH"` \| `"FF_SRC"` \| `"FILL"` \| `"FLAT"` \| `"FROM_CODE_POINT"` \| `"FUNCTION_19_LF"` \| `"FUNCTION_22_LF"` \| `"GENERIC_ARRAY_TO_STRING"` \| `"GLOBAL_UNDEFINED"` \| `"GMT"` \| `"HISTORY"` \| `"HTMLAUDIOELEMENT"` \| `"HTMLDOCUMENT"` \| `"IE_SRC"` \| `"INCR_CHAR"` \| `"INTL"` \| `"ITERATOR_HELPER"` \| `"LOCALE_INFINITY"` \| `"LOCALE_NUMERALS"` \| `"LOCALE_NUMERALS_EXT"` \| `"LOCATION"` \| `"NAME"` \| `"NODECONSTRUCTOR"` \| `"NO_FF_SRC"` \| `"NO_IE_SRC"` \| `"NO_OLD_SAFARI_ARRAY_ITERATOR"` \| `"NO_V8_SRC"` \| `"OBJECT_ARRAY_ENTRIES_CTOR"` \| `"OBJECT_L_LOCATION_CTOR"` \| `"OBJECT_UNDEFINED"` \| `"OBJECT_W_CTOR"` \| `"OLD_SAFARI_LOCATION_CTOR"` \| `"PLAIN_INTL"` \| `"REGEXP_STRING_ITERATOR"` \| `"SELF_OBJ"` \| `"SHORT_LOCALES"` \| `"STATUS"` \| `"UNDEFINED"` \| `"V8_SRC"` \| `"WINDOW"`
 
 Name of an elementary feature.
diff --git a/src/lib/features.js b/src/lib/features.js
index af9cd435..d7bf23fa 100644
--- a/src/lib/features.js
+++ b/src/lib/features.js
@@ -1,4 +1,4 @@
-/* global Audio, Node, console, document, history, location, self, statusbar */
+/* global Audio, Iterator, Node, console, document, history, location, self, statusbar */
 
 import { _Object_defineProperty, _Object_keys, assignNoEnum, createEmpty }  from './obj-utils';
 import { createFeatureClass, featuresToMask }                               from '~feature-hub';
@@ -496,6 +496,16 @@ var featureInfos =
             return available;
         },
     },
+    ITERATOR_HELPER:
+    {
+        description: 'Availability of iterator helpers.',
+        check:
+        function ()
+        {
+            var available = typeof Iterator === 'function';
+            return available;
+        },
+    },
     LOCALE_INFINITY:
     {
         description: 'Language sensitive string representation of Infinity as "∞".',