Setup eslint

2 files changed, 65 insertions, 6 deletions

diff --git a/.editorconfig b/.editorconfig
index 04255df..0ec9ed4 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -12,7 +12,7 @@ trim_trailing_whitespace = true
 [*.md]
 trim_trailing_whitespace = false
 
-[*.{svg,css,scss,json,webmanifest,yaml,yml,toml,md,babelrc,eslintrc,postcssrc,stylelintrc,ecrc,gitattributes}]
+[*.{svg,css,scss,js,json,webmanifest,yaml,yml,toml,md,babelrc,eslintrc,postcssrc,stylelintrc,ecrc,gitattributes}]
 indent_size              = 2
 
 [layouts/**.{svg}]
diff --git a/.eslintrc b/.eslintrc
index c091af7..f6f5a14 100644
--- a/.eslintrc
+++ b/.eslintrc
@@ -1,9 +1,68 @@
 {
-  "extends": "airbnb-base/legacy",
+  "extends": "eslint:recommended",
+
+  "parserOptions": {
+    "ecmaVersion": 2017
+  },
+
+  "env": {
+    "browser": true,
+    "es6": true,
+    "jquery": true
+  },
+
   "rules": {
-    "indent": [2, "tab"],
-    "no-tabs": 0,
-    "no-unused-vars": 0,
-    "no-shadow-restricted-names": 0
+    //
+    // Possible Errors
+    //
+    // The following rules point out areas where you might have made mistakes.
+    //
+    "comma-dangle": 2, // disallow or enforce trailing commas
+    "no-console": 1, // disallow use of console (off by default in the node environment)
+    "no-debugger": 2, // disallow use of debugger
+    "no-empty": 2, // disallow empty statements
+    "no-extra-semi": 2, // disallow unnecessary semicolons
+
+    //
+    // Best Practices
+    //
+    // These are rules designed to prevent you from making mistakes.
+    // They either prescribe a better way of doing something or help you avoid footguns.
+    //
+    "eqeqeq": 2, // require the use of === and !==
+    "no-alert": 2, // disallow the use of alert, confirm, and prompt
+    "no-eval": 2, // disallow use of eval()
+    "no-multi-spaces": 2, // disallow use of multiple spaces
+    "no-redeclare": 2, // disallow declaring the same variable more then once
+
+    //
+    // Strict Mode
+    //
+    // These rules relate to using strict mode.
+    //
+    "strict": 0, // controls location of Use Strict Directives
+
+    //
+    // Stylistic Issues
+    //
+    // These rules are purely matters of style and are quite subjective.
+    //
+    "indent": [1, 2], // this option sets a specific tab width for your code (off by default)
+    "brace-style": 1, // enforce one true brace style (off by default)
+    "camelcase": 1, // require camel case names
+    "comma-spacing": [1, {"before": false, "after": true}], // enforce spacing before and after comma
+    "comma-style": [1, "last"], // enforce one true comma style (off by default)
+    "eol-last": 1, // enforce newline at the end of file, with no multiple empty lines
+    "quotes": [1, "single"], // specify whether double or single quotes should be used
+    "semi": [1, "always"], // require or disallow use of semicolons instead of ASI
+    "semi-spacing": [1, {"before": false, "after": true}], // enforce spacing before and after semicolons
+    "sort-vars": 0, // sort variables within the same declaration block (off by default)
+
+    //
+    // ECMAScript 6
+    //
+    // These rules are only relevant to ES6 environments and are off by default.
+    //
+    "no-var": 2 // require let or const instead of var (off by default)
   }
 }