Update style.md

docs/style.md

@@ -260,11 +260,15 @@ const nodes = Array.from(foo);
 });
 
 // good
+[1, 2, 3].map((x) => {
+  return x * x;
+});
+
+// best
 [1, 2, 3].map(x => x * x);
 
-// with more argument and code
+// best
 [1, 2, 3].map((x,i) => {
-  console.log(x);
   return x * i;
 });
 ```