Update takeWhile.md

snippets/takeWhile.md

@@ -11,11 +11,11 @@ Returns the removed elements.
 
 ```js
 const takeWhile = (arr, func) => {
-  for (const [i, val] of arr.entries()) if (func(val)) return arr.slice(0, i);
+  for (const [i, val] of arr.entries()) if (!func(val)) return arr.slice(0, i);
   return arr;
 };
 ```
 
 ```js
-takeWhile([1, 2, 3, 4], n => n >= 3); // [1, 2]
+takeWhile([1, 2, 3, 4], n => n < 3); // [1, 2]
 ```