Add spaces after control flow statements.

Adding spaces.

Author: aadil42

javascript/1325-delete-leaves-with-a-given-value.js

@@ -17,11 +17,11 @@
 var removeLeafNodes = function(root, target) {
 
     const dfs = (node) => {
-        if(!node) return null;
+        if (!node) return null;
         node.left = dfs(node.left);
         node.right = dfs(node.right);
-        if(!node.left && !node.right) {
-            if(node.val === target) return null;
+        if (!node.left && !node.right) {
+            if (node.val === target) return null;
         }
         return node;
     }