Allow using selectedIndex on select element

Author: Havunen

CHANGELOG.md

@@ -1,4 +1,7 @@
 # Change Log
+## 2025-01-23 (7.37.7)
+- bugfix: Allow using 'selectedIndex' attribute on select elements
+
 ## 2025-01-23 (7.37.6)
 - bugfix: allow using lowercased variants of semi-synthetic events  
 - bugfix: added intermediate as allowed attribute

lib/rules/no-unknown-property.js

@@ -113,6 +113,7 @@ const ATTRIBUTE_TAGS_MAP = {
   poster: ['video'],
   preload: ['audio', 'video'],
   scrolling: ['iframe'],
+  selectedIndex: ['select'],
   returnValue: ['dialog'],
   webkitDirectory: ['input'],
 };

package.json

@@ -1,6 +1,6 @@
 {
   "name": "eslint-plugin-inferno",
-  "version": "7.37.6",
+  "version": "7.37.7",
   "description": "Inferno specific linting rules for ESLint",
   "main": "index.js",
   "types": "index.d.ts",

tests/lib/rules/no-unknown-property.js

@@ -48,6 +48,8 @@ ruleTester.run('no-unknown-property', rule, {
     { code: '<App onComponentWillDisappear={foo} />;' },
     { code: '<App onComponentWillMove={foo} />;' },
 
+    { code: '<select selectedIndex={1} />;' },
+
     // Inferno components and their props/attributes should be fine
     { code: '<App class="bar" />;' },
     { code: '<App for="bar" />;' },
@@ -215,6 +217,19 @@ ruleTester.run('no-unknown-property', rule, {
     },
   ]),
   invalid: parsers.all([
+    {
+      code: '<div selectedIndex={foo} />;',
+      errors: [
+        {
+          messageId: 'invalidPropOnTag',
+          data: {
+            name: 'selectedIndex',
+            tagName: 'div',
+            allowedTags: 'select',
+          },
+        },
+      ],
+    },
     {
       code: '<div onComponentWillMount={foo} />;',
       errors: [