Added in ESLint

.eslintrc

@@ -0,0 +1,42 @@
+{
+    "parser": "babel-eslint",
+    "rules": {
+        "valid-jsdoc": [2, {
+            "requireReturn": false,
+            "requireParamDescription": true,
+            "requireReturnDescription": true
+        }],
+        "default-case": 2,
+        "dot-location": [2, "property"],
+        "no-else-return": 2,
+        "no-floating-decimal": 2,
+        "no-param-reassign": 2,
+        "no-process-env": 2,
+        "no-undefined": 2,
+        "comma-style": [2, "last"],
+        "linebreak-style": [2, "unix"],
+        "no-lonely-if": 2,
+        "no-multiple-empty-lines": [2, {
+            "max": 2
+        }],
+        "no-nested-ternary": 2,
+        "no-var": 2,
+        "quotes": [2, "single", "avoid-escape"],
+        "no-console": 0,
+        "no-trailing-spaces": [2, {"skipBlankLines": true}],
+        "new-cap": [2, {
+            "newIsCap": true,
+            "capIsNew": false
+        }]
+    },
+    "env": {
+        "es6": true,
+        "node": true
+    },
+    "ecmaFeatures": {
+        "jsx": true,
+        "modules": true
+    },
+    "plugins": [
+    ]
+}

package.json

@@ -5,12 +5,17 @@
   "main": "lib/main/index.js",
   "scripts": {
     "clean": "rm -rf lib",
+
     "compile": "babel src/main -d lib/main",
+
     "test-compile": "babel src/test -d lib/test",
     "pretest-compile": "npm run compile",
     "preunittest": "npm run test-compile",
     "unittest": "mocha lib/test",
-    "test": "npm run unittest"
+
+    "lint": "eslint src",
+
+    "test": "npm run lint && npm run unittest"
   },
   "repository": {
     "type": "git",
@@ -28,7 +33,9 @@
   "homepage": "https://github.com/sazzer/graphql-tester#readme",
   "devDependencies": {
     "babel-cli": "^6.4.5",
+    "babel-eslint": "^4.1.8",
     "babel-preset-es2015-node5": "^1.1.2",
+    "eslint": "^1.10.3",
     "mocha": "^2.4.5"
   }
 }

src/main/index.js

@@ -1,5 +1,5 @@
 export function tester({
-    url, 
+    url,
     method = 'POST',
     contentType = 'application/graphql'
 }) {