Upgrade CI

.editorconfig

@@ -9,7 +9,7 @@ trim_trailing_whitespace = true
 [*.html]
 indent_style = tab
 
-[*.js]
+[*.{js,mjs}]
 indent_style = tab
 
 [*.json]

.github/workflows/nodejs.yml

@@ -13,7 +13,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [16.x, 20.x]
+        node-version: [18.x, 22.x]
 
     steps:
     - uses: actions/checkout@v4

.markdownlint.json

@@ -12,6 +12,7 @@
 	"no-multiple-blanks": {
 		"maximum": 2
 	},
+	"no-trailing-spaces": true,
 	"ul-indent": false,
 	"ul-style": {
 		"style": "consistent"

.eslintignore → .markdownlintignore

@@ -1 +1,2 @@
+.git/
 node_modules/

eslint.config.mjs

@@ -0,0 +1,61 @@
+import globals from "globals";
+import html from "eslint-plugin-html";
+import js from "@eslint/js";
+import neostandard, { resolveIgnoresFromGitignore } from 'neostandard';
+import stylistic from '@stylistic/eslint-plugin';
+
+export default [
+	{
+		files: ["**/*.js"],
+		languageOptions: {
+			globals: {
+				...globals.browser,
+			},
+			sourceType: "script",
+		},
+	},
+	{
+		files: ["**/*.html"],
+		plugins: { html },
+		settings: {
+			"html/indent": "tab",
+			"html/report-bad-indent": "error",
+		},
+	},
+	{
+		ignores: [
+			...resolveIgnoresFromGitignore(),
+		],
+	},
+	js.configs.recommended,
+	// stylistic.configs['recommended-flat'],
+	...neostandard(),
+	{
+		plugins: {
+			"@stylistic": stylistic,
+		},
+		rules: {
+			"camelcase": "off",
+			"eqeqeq": "off",
+			"no-empty": ["error", { "allowEmptyCatch": true }],
+			"no-unused-vars": ["error", {
+				"args": "none",
+				"caughtErrors": "none",
+			}],
+			"object-shorthand": ["warn", "consistent"],
+			"yoda": "off",
+			"@stylistic/indent": ["warn", "tab", { "SwitchCase": 1 }],
+			"@stylistic/linebreak-style": ["error", "unix"],
+			"@stylistic/max-len": ["warn", 165],
+			"@stylistic/no-tabs": "off",
+			"@stylistic/quotes": ["off", "single", { "avoidEscape": true }],
+			"@stylistic/quote-props": ["warn", "consistent"],
+			"@stylistic/semi": ["warn", "always"],
+			"@stylistic/space-before-function-paren": ["warn", {
+				"anonymous": "always",
+				"asyncArrow": "always",
+				"named": "never",
+			}],
+		},
+	},
+];