chore: Use ESLint overrides for config (#348)

.eslintignore

@@ -3,3 +3,4 @@ demo/markdownlint-browser.js
 demo/markdownlint-browser.min.js
 demo/markdownlint-rule-helpers-browser.js
 example/typescript/type-check.js
+lib-es3/

.eslintrc.json

@@ -180,5 +180,36 @@
     "unicorn/prevent-abbreviations": "off",
     "unicorn/string-content": "error",
     "unicorn/throw-new-error": "error"
-  }
+  },
+  "overrides": [
+    {
+      "files": [
+        "demo/*.js"
+      ],
+      "env": {
+        "browser": true
+      },
+      "rules": {
+        "jsdoc/require-jsdoc": "off",
+        "unicorn/prefer-query-selector": "off",
+        "unicorn/prefer-add-event-listener": "off",
+        "no-console": "off",
+        "no-shadow": "off",
+        "no-var": "off"
+      }
+    },
+    {
+      "files": [
+        "example/*.js"
+      ],
+      "rules": {
+        "node/no-missing-require": "off",
+        "node/no-extraneous-require": "off",
+        "no-console": "off",
+        "no-invalid-this": "off",
+        "no-shadow": "off",
+        "object-property-newline": "off"
+      }
+    }
+  ]
 }

demo/default.js

@@ -1,7 +1,5 @@
 "use strict";
 
-/* eslint-disable jsdoc/require-jsdoc */
-
 (function main() {
   // DOM elements
   var markdown = document.getElementById("markdown");
@@ -166,7 +164,7 @@
 
   // Show library version
   document.getElementById("version").textContent =
-    "(v" + markdownlint.getVersion() + ")";
+    "(v" + window.markdownlint.getVersion() + ")";
 
   // Add event listeners
   document.body.addEventListener("dragover", onDragOver);
@@ -208,7 +206,7 @@
   // Update Markdown from hash (if present)
   if (window.location.hash) {
     try {
-      const decodedHash = decodeURIComponent(window.location.hash.substring(1));
+      var decodedHash = decodeURIComponent(window.location.hash.substring(1));
       if (hashPrefix === decodedHash.substring(0, hashPrefix.length)) {
         markdown.value = decodedHash.substring(hashPrefix.length);
       }

package.json

@@ -17,7 +17,7 @@
     "test-cover": "c8 --check-coverage --branches 100 --functions 100 --lines 100 --statements 100 tape test/markdownlint-test.js test/markdownlint-test-custom-rules.js test/markdownlint-test-helpers.js test/markdownlint-test-result-object.js test/markdownlint-test-scenarios.js",
     "test-declaration": "cd example/typescript && tsc && node type-check.js",
     "test-extra": "node test/markdownlint-test-extra.js",
-    "lint": "eslint --max-warnings 0 lib helpers test schema && eslint --env browser --global markdownit --global markdownlint --rule \"no-unused-vars: 0, no-extend-native: 0, max-statements: 0, no-console: 0, no-var: 0, unicorn/prefer-add-event-listener: 0, unicorn/prefer-query-selector: 0, unicorn/prefer-replace-all: 0\" demo && eslint --rule \"no-console: 0, no-invalid-this: 0, no-shadow: 0, object-property-newline: 0, node/no-missing-require: 0, node/no-extraneous-require: 0\" example",
+    "lint": "eslint --max-warnings 0 .",
     "ci": "npm run test-cover && npm run lint && npm run test-declaration",
     "build-config-schema": "node schema/build-config-schema.js",
     "build-declaration": "tsc --allowJs --declaration --emitDeclarationOnly --resolveJsonModule lib/markdownlint.js && rimraf 'lib/{c,md,r}*.d.ts' 'helpers/*.d.ts'",