prefer-dom-node-dataset: Fix name conversion (#1674)

rules/prefer-dom-node-dataset.js

@@ -22,9 +22,15 @@ const dashToCamelCase = string => string.replace(/-[a-z]/g, s => s[1].toUpperCas
 const create = context => ({
 	[selector](node) {
 		const [nameNode] = node.arguments;
-		const attributeName = nameNode.value;
+		let attributeName = nameNode.value;
 
-		if (typeof attributeName !== 'string' || !attributeName.startsWith('data-') || attributeName === 'data-') {
+		if (typeof attributeName !== 'string') {
+			return;
+		}
+
+		attributeName = attributeName.toLowerCase();
+
+		if (!attributeName.startsWith('data-')) {
 			return;
 		}
 

test/prefer-dom-node-dataset.mjs

@@ -28,8 +28,7 @@ test.snapshot({
 		'element.setAttribute(0, \'🦄\');',
 		// First Argument is not startsWith `data-`
 		'element.setAttribute(\'foo-unicorn\', \'🦄\');',
-		// First Argument is `data-`
-		'element.setAttribute(\'data-\', \'🦄\');',
+		'element.setAttribute(\'data\', \'🦄\');',
 	],
 	invalid: [
 		outdent`
@@ -47,6 +46,11 @@ test.snapshot({
 		'element.setAttribute(\'data-foo-bar\', \'zaz\');',
 		'element.setAttribute(\'data-foo\', /* comment */ \'bar\');',
 		'element.querySelector(\'#selector\').setAttribute(\'data-AllowAccess\', true);',
+		'element.setAttribute("data-", "🦄");',
+		'element.setAttribute("data--foo", "🦄");',
+		'element.setAttribute("DATA--FOO", "🦄");',
+		'element.setAttribute("DATA- ", "🦄");',
+		'element.setAttribute("DATA-Foo-bar", "🦄");',
 	],
 });
 
@@ -75,8 +79,7 @@ test.snapshot({
 		'element.removeAttribute(0);',
 		// First Argument is not startsWith `data-`
 		'element.removeAttribute("foo-unicorn");',
-		// First Argument is `data-`
-		'element.removeAttribute("data-");',
+		'element.removeAttribute("data");',
 	],
 	invalid: [
 		outdent`
@@ -95,6 +98,7 @@ test.snapshot({
 		'element.removeAttribute("data-foo-bar");',
 		'element.removeAttribute("data-foo");',
 		'element.querySelector("#selector").removeAttribute("data-AllowAccess");',
+		'element.removeAttribute("data-");',
 	],
 });
 
@@ -126,8 +130,7 @@ test.snapshot({
 		'element.hasAttribute(0);',
 		// First Argument is not startsWith `data-`
 		'element.hasAttribute("foo-unicorn");',
-		// First Argument is `data-`
-		'element.hasAttribute("data-");',
+		'element.hasAttribute("data");',
 	],
 	invalid: [
 		outdent`
@@ -173,8 +176,7 @@ test.snapshot({
 		'element.getAttribute(0);',
 		// First Argument is not startsWith `data-`
 		'element.getAttribute("foo-unicorn");',
-		// First Argument is `data-`
-		'element.getAttribute("data-");',
+		'element.getAttribute("data");',
 	],
 	invalid: [
 		outdent`

test/snapshots/prefer-dom-node-dataset.mjs.md

@@ -163,7 +163,7 @@ Generated by [AVA](https://avajs.dev).
 > Output
 
     `␊
-      1 | element.querySelector('#selector').dataset.AllowAccess = true;␊
+      1 | element.querySelector('#selector').dataset.allowaccess = true;␊
     `
 
 > Error 1/1
@@ -173,6 +173,86 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`setAttribute(…)\`.␊
     `
 
+## Invalid #11
+      1 | element.setAttribute("data-", "🦄");
+
+> Output
+
+    `␊
+      1 | element.dataset[""] = "🦄";␊
+    `
+
+> Error 1/1
+
+    `␊
+    > 1 | element.setAttribute("data-", "🦄");␊
+        | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`setAttribute(…)\`.␊
+    `
+
+## Invalid #12
+      1 | element.setAttribute("data--foo", "🦄");
+
+> Output
+
+    `␊
+      1 | element.dataset.Foo = "🦄";␊
+    `
+
+> Error 1/1
+
+    `␊
+    > 1 | element.setAttribute("data--foo", "🦄");␊
+        | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`setAttribute(…)\`.␊
+    `
+
+## Invalid #13
+      1 | element.setAttribute("DATA--FOO", "🦄");
+
+> Output
+
+    `␊
+      1 | element.dataset.Foo = "🦄";␊
+    `
+
+> Error 1/1
+
+    `␊
+    > 1 | element.setAttribute("DATA--FOO", "🦄");␊
+        | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`setAttribute(…)\`.␊
+    `
+
+## Invalid #14
+      1 | element.setAttribute("DATA- ", "🦄");
+
+> Output
+
+    `␊
+      1 | element.dataset[" "] = "🦄";␊
+    `
+
+> Error 1/1
+
+    `␊
+    > 1 | element.setAttribute("DATA- ", "🦄");␊
+        | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`setAttribute(…)\`.␊
+    `
+
+## Invalid #15
+      1 | element.setAttribute("DATA-Foo-bar", "🦄");
+
+> Output
+
+    `␊
+      1 | element.dataset.fooBar = "🦄";␊
+    `
+
+> Error 1/1
+
+    `␊
+    > 1 | element.setAttribute("DATA-Foo-bar", "🦄");␊
+        | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`setAttribute(…)\`.␊
+    `
+
 ## Invalid #1
       1 | element.removeAttribute(
       2 | 	"data-foo", // comment
@@ -361,7 +441,7 @@ Generated by [AVA](https://avajs.dev).
 > Output
 
     `␊
-      1 | delete element.querySelector("#selector").dataset.AllowAccess;␊
+      1 | delete element.querySelector("#selector").dataset.allowaccess;␊
     `
 
 > Error 1/1
@@ -371,6 +451,22 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`removeAttribute(…)\`.␊
     `
 
+## Invalid #13
+      1 | element.removeAttribute("data-");
+
+> Output
+
+    `␊
+      1 | delete element.dataset[""];␊
+    `
+
+> Error 1/1
+
+    `␊
+    > 1 | element.removeAttribute("data-");␊
+        | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`removeAttribute(…)\`.␊
+    `
+
 ## Invalid #1
       1 | element.hasAttribute(
       2 | 	"data-foo", // comment
@@ -559,7 +655,7 @@ Generated by [AVA](https://avajs.dev).
 > Output
 
     `␊
-      1 | Object.hasOwn(element.querySelector("#selector").dataset, "AllowAccess");␊
+      1 | Object.hasOwn(element.querySelector("#selector").dataset, "allowaccess");␊
     `
 
 > Error 1/1
@@ -757,7 +853,7 @@ Generated by [AVA](https://avajs.dev).
 > Output
 
     `␊
-      1 | element.querySelector("#selector").dataset.AllowAccess;␊
+      1 | element.querySelector("#selector").dataset.allowaccess;␊
     `
 
 > Error 1/1