Update negate.md

snippets/negate.md

@@ -5,10 +5,7 @@ Negates a predicate function.
 Take a predicate function and apply `not` to it with its arguments.
 
 ```js
-const negate = func => (...args) => {
-  return !func(...args);
-}
-
+const negate = func => (...args) => !fun(...args);
 // filter([1, 2, 3, 4, 5, 6], negate(isEven)) -> [1, 3, 5]
 // negate(isOdd)(1) -> false
 ```