flatten config

Author: baseballyama

docs/rules/no-restricted-html-elements.md

@@ -21,7 +21,7 @@ This rule reports to usage of resticted HTML elements.
 
 ```svelte
 <script>
-  /* eslint svelte/no-restricted-html-elements: ["error", ["h1", "h2", "h3", "h4", "h5", "h6"]] */
+  /* eslint svelte/no-restricted-html-elements: ["error", "h1", "h2", "h3", "h4", "h5", "h6"] */
 </script>
 
 <!-- ✓ GOOD -->
@@ -73,7 +73,12 @@ This rule takes a list of strings, where each string is an HTML element name to
 {
   "svelte/no-restricted-html-elements": [
     "error",
-    ["h1", "h2", "h3", "h4", "h5", "h6"]
+    "h1",
+    "h2",
+    "h3",
+    "h4",
+    "h5",
+    "h6"
   ]
 }
 ```
@@ -85,7 +90,7 @@ Alternatively, the rule also accepts objects.
   "svelte/no-restricted-html-elements": [
     "error",
     {
-      "elements": ["h1", "h2", "h3", "h4", "h5", "h6"],
+      "elements": "h1", "h2", "h3", "h4", "h5", "h6",
       "message": "Prefer use of our custom <Heading /> component"
     },
     {

src/rules/no-restricted-html-elements.ts

@@ -11,14 +11,7 @@ export default createRule("no-restricted-html-elements", {
       type: "array",
       items: {
         oneOf: [
-          {
-            type: "array",
-            items: {
-              type: ["string"],
-            },
-            uniqueItems: true,
-            minItems: 1,
-          },
+          { type: "string" },
           {
             type: "object",
             properties: {
@@ -53,7 +46,7 @@ export default createRule("no-restricted-html-elements", {
           const message =
             option.message ||
             `Unexpected use of forbidden HTML element ${name.name}.`
-          const elements = option.elements || option
+          const elements = option.elements || [option]
           for (const element of elements) {
             if (element === name.name) {
               context.report({

tests/fixtures/rules/no-restricted-html-elements/invalid/array-config.json

@@ -1,3 +1,3 @@
 {
-  "options": [["h1", "h2", "h3", "h4", "h5", "h6"]]
+  "options": ["h1", "h2", "h3", "h4", "h5", "h6"]
 }

tests/fixtures/rules/no-restricted-html-elements/valid/array-config.json

@@ -1,3 +1,3 @@
 {
-  "options": [["h1", "h2", "h3", "h4", "h5", "h6"]]
+  "options": ["h1", "h2", "h3", "h4", "h5", "h6"]
 }