docs: add 'jsx-no-duplicate-props'

Author: Rel1cx

packages/plugins/eslint-plugin-react-x/README.md

@@ -30,6 +30,7 @@ export default [
     rules: {
       // react-x recommended rules
       "react-x/ensure-forward-ref-using-ref": "warn",
+      "react-x/jsx-no-duplicate-props": "warn",
       "react-x/jsx-uses-vars": "warn",
       "react-x/no-access-state-in-setstate": "error",
       "react-x/no-array-index-key": "warn",
@@ -75,6 +76,7 @@ export default [
 | `avoid-shorthand-boolean`                | Prevents using shorthand syntax for boolean attributes.                                              | 🎨  |     |     |
 | `avoid-shorthand-fragment`               | Prevents using shorthand syntax for fragments.                                                       | 🎨  |     |     |
 | `ensure-forward-ref-using-ref`           | Requires that components wrapped with `forwardRef` must have a `ref` parameter.                      |  ✔️  |     |     |
+| `jsx-no-duplicate-props`                 | Prevents duplicate props in JSX.                                                                     |  ✔️  |     |     |
 | `jsx-uses-vars`                          | Prevents variables used in JSX to be marked as unused.                                               |  ✔️  |     |     |
 | `no-access-state-in-setstate`            | Prevents accessing `this.state` inside `setState` calls.                                             |  ✔️  |     |     |
 | `no-array-index-key`                     | Prevents using array `index` as `key`.                                                               | 🧐  |     |     |

website/pages/docs/rules/_meta.ts

@@ -9,6 +9,7 @@ export default {
     type: "separator",
   },
   "ensure-forward-ref-using-ref": "ensure-forward-ref-using-ref",
+  "jsx-no-duplicate-props": "jsx-no-duplicate-props",
   "jsx-uses-vars": "jsx-uses-vars",
   "no-access-state-in-setstate": "no-access-state-in-setstate",
   "no-array-index-key": "no-array-index-key",

website/pages/docs/rules/jsx-no-duplicate-props.mdx

@@ -0,0 +1,23 @@
+# jsx-no-duplicate-props
+
+## Rule category
+
+Correctness.
+
+## What it does
+
+This rule prevents the use of duplicate props in JSX elements.
+
+## Examples
+
+### Failing
+
+```tsx
+<Hello name="John" name="Doe" />;
+```
+
+### Passing
+
+```tsx
+<Hello name="John" />;
+```

website/pages/docs/rules/overview.md

@@ -26,6 +26,7 @@
 | [`avoid-shorthand-boolean`](avoid-shorthand-boolean)                               | Prevents using shorthand syntax for boolean attributes.                                              | 🎨  |     |     |
 | [`avoid-shorthand-fragment`](avoid-shorthand-fragment)                             | Prevents using shorthand syntax for fragments.                                                       | 🎨  |     |     |
 | [`ensure-forward-ref-using-ref`](ensure-forward-ref-using-ref)                     | Requires that components wrapped with `forwardRef` must have a `ref` parameter.                      |  ✔️  |     |     |
+| [`jsx-no-duplicate-props`](jsx-no-duplicate-props)                                 | Prevents duplicate props in JSX.                                                                     |  ✔️  |     |     |
 | [`jsx-uses-vars`](jsx-uses-vars)                                                   | Prevents variables used in JSX to be marked as unused.                                               |  ✔️  |     |     |
 | [`no-access-state-in-setstate`](no-access-state-in-setstate)                       | Prevents accessing `this.state` inside `setState` calls.                                             |  ✔️  |     |     |
 | [`no-array-index-key`](no-array-index-key)                                         | Prevents using array `index` as `key`.                                                               | 🧐  |     |     |