Update ESLint rules.

package.json

@@ -40,6 +40,16 @@
     "env": {
       "es6": true,
       "node": true
+    },
+    "rules": {
+      "prefer-destructuring": [
+        "error",
+        {
+          "object": true,
+          "array": false
+        }
+      ],
+      "strict": "error"
     }
   }
 }