Use eslint:recommend

.eslintrc.json

@@ -1,20 +1,10 @@
 {
-	"rules": {
-		"indent": ["error", "tab"],
-		"quotes": ["error", "double"],
-        "semi": ["error"],
-		"max-len": ["error", 250],
-		"curly": "error",
-		"camelcase": ["error", {"properties": "never"}],
-        "no-multiple-empty-lines": ["error", { "max": 1, "maxEOF": 1 }],
-		"no-multi-spaces": "error",
-		"no-trailing-spaces": ["error", {"ignoreComments": false }],
-		"no-irregular-whitespace": ["error"]
-	},
+	"extends": "eslint:recommended",
 	"env": {
 		"browser": true,
-		"node": true,
-		"es6": true
+		"es6": true,
+		"mocha": true,
+		"node": true
 	},
 	"parserOptions": {
 		"sourceType": "module",