Add npm run eslint

.eslintrc

@@ -11,6 +11,7 @@
 		"block-scoped-var": [0],
 		"brace-style": [2, "1tbs", { "allowSingleLine": true }],
 		"camelcase": [2],
+		"comma-dangle": [2, "never"],
 		"comma-spacing": [2],
 		"comma-style": [2, "last"],
 		"complexity": [0, 11],
@@ -22,11 +23,13 @@
 		"eol-last": [2],
 		"eqeqeq": [2],
 		"func-names": [0],
-		"func-style": [0, "declaration"],
+		"func-style": [2, "expression"],
+		"generator-star-spacing": [2, "after"],
 		"global-strict": [0, "never"],
 		"guard-for-in": [0],
 		"handle-callback-err": [0],
 		"key-spacing": [2, { "beforeColon": false, "afterColon": true }],
+		"linebreak-style": [2, "unix"],
 		"quotes": [2, "single", "avoid-escape"],
 		"max-depth": [0, 4],
 		"max-len": [0, 80, 4],
@@ -35,20 +38,23 @@
 		"max-statements": [0, 10],
 		"new-parens": [2],
 		"new-cap": [2],
+		"newline-after-var": [0],
 		"no-alert": [2],
 		"no-array-constructor": [2],
 		"no-bitwise": [0],
 		"no-caller": [2],
 		"no-catch-shadow": [2],
-		"no-comma-dangle": [2],
 		"no-cond-assign": [2],
 		"no-console": [2],
 		"no-constant-condition": [2],
+		"no-continue": [2],
 		"no-control-regex": [2],
 		"no-debugger": [2],
 		"no-delete-var": [2],
 		"no-div-regex": [0],
+		"no-dupe-args": [2],
 		"no-dupe-keys": [2],
+		"no-duplicate-case": [2],
 		"no-else-return": [0],
 		"no-empty": [2],
 		"no-empty-class": [2],
@@ -80,7 +86,7 @@
 		"no-mixed-spaces-and-tabs": [2, false],
 		"no-multi-spaces": [2],
 		"no-multi-str": [2],
-		"no-multiple-empty-lines": [0, {"max": 2}],
+		"no-multiple-empty-lines": [2, {"max": 1}],
 		"no-native-reassign": [2],
 		"no-negated-in-lhs": [2],
 		"no-nested-ternary": [0],
@@ -92,6 +98,7 @@
 		"no-obj-calls": [2],
 		"no-octal": [2],
 		"no-octal-escape": [2],
+		"no-param-reassign": [2],
 		"no-path-concat": [0],
 		"no-plusplus": [0],
 		"no-process-env": [0],
@@ -112,11 +119,13 @@
 		"no-sparse-arrays": [2],
 		"no-sync": [0],
 		"no-ternary": [0],
-		"no-trailing-spaces": [2],
+		"no-throw-literal": [2],
+		"no-trailing-spaces": [2, { "skipBlankLines": false }],
 		"no-undef": [2],
 		"no-undef-init": [2],
 		"no-undefined": [0],
 		"no-underscore-dangle": [2],
+		"no-unneeded-ternary": [2],
 		"no-unreachable": [2],
 		"no-unused-expressions": [2],
 		"no-unused-vars": [2, { "vars": "all", "args": "after-used" }],
@@ -125,14 +134,18 @@
 		"no-warning-comments": [0, { "terms": ["todo", "fixme", "xxx"], "location": "start" }],
 		"no-with": [2],
 		"no-wrap-func": [2],
+		"object-shorthand": [2, "never"],
 		"one-var": [0],
 		"operator-assignment": [0, "always"],
+		"operator-linebreak": [2, "none"],
 		"padded-blocks": [0],
 		"quote-props": [0],
 		"radix": [0],
 		"semi": [2],
+		"semi-spacing": [2, { "before": false, "after": true }],
 		"sort-vars": [0],
-		"space-after-keywords": [2, "always", { "checkFunctionKeyword": true }],
+		"space-after-keywords": [2, "always"],
+		"space-before-function-paren": [2, { "anonymous": "always", "named": "never" }],
 		"space-before-blocks": [0, "always"],
 		"space-in-brackets": [0, "never", {
 			"singleValue": true,
@@ -145,7 +158,6 @@
 		"space-in-parens": [2, "never"],
 		"space-infix-ops": [2],
 		"space-return-throw-case": [2],
-		"space-after-function-name": [2, "never"],
 		"space-unary-ops": [2, { "words": true, "nonwords": false }],
 		"spaced-line-comment": [0, "always"],
 		"strict": [0],

index.js

@@ -24,6 +24,6 @@ if (hasSymbols) {
 
 	module.exports = function isSymbol(value) {
 		// this environment does not support Symbols.
-		return false;
+		return false && value;
 	};
 }

package.json

@@ -7,7 +7,9 @@
 		"test": "npm run lint && node --es-staging --harmony test/index.js && npm run security",
 		"coverage": "covert test/index.js",
 		"coverage:quiet": "covert test/index.js --quiet",
-		"lint": "jscs *.js */*.js",
+		"lint": "npm run jscs && npm run eslint",
+		"jscs": "jscs *.js */*.js",
+		"eslint": "eslint *.js */*.js",
 		"security": "nsp package"
 	},
 	"repository": {
@@ -31,7 +33,8 @@
 		"covert": "^1.1.0",
 		"jscs": "^1.13.1",
 		"nsp": "^1.0.1",
-		"semver": "^4.3.4"
+		"semver": "^4.3.4",
+		"eslint": "^0.21.2"
 	},
 	"testling": {
 		"files": "test/index.js",

test/index.js

@@ -14,8 +14,11 @@ var hasSymbols = typeof Symbol === 'function' && typeof Symbol() === 'symbol';
 var debug = function (value, msg) {
 	var output = '';
 	if (hasSymbols) {
-		try { output += String(value); }
-		catch (e) { output += Symbol.prototype.toString.call(value); }
+		try {
+			output += String(value);
+		} catch (e) {
+			output += Symbol.prototype.toString.call(value);
+		}
 		if (output === '') {
 			output = JSON.stringify(value);
 		}