From ef38253ce95d9475c7b27d5f57fdb673350cb36c Mon Sep 17 00:00:00 2001
From: Mahmoud Abo-Zied <116457362+EpitomeZied@users.noreply.github.com>
Date: Fri, 19 Dec 2025 02:02:43 +0200
Subject: [PATCH] Add placeholders for remaining study plan problems

---
 README.md | 178 +++++++++++++++++++++++++++++++-----------------------
 1 file changed, 104 insertions(+), 74 deletions(-)

diff --git a/README.md b/README.md
index 82d7de1..b644cb0 100644
--- a/README.md
+++ b/README.md
@@ -36,7 +36,7 @@ git clone https://github.com/yourusername/30-days-of-javascript.git
 cd 30-days-of-javascript
 
 # Run any solution
-node closures/2667.js
+node "01 Closures/2809-create-hello-world-function.js"
 ```
 
 ## 📚 Problems
@@ -48,33 +48,33 @@ node closures/2667.js
 <th width="100">LeetCode #</th>
 <th width="100">Difficulty</th>
 <th>Problem</th>
-<th width="100">Solution</th>
+<th width="140">Solution</th>
 </tr>
 </thead>
 <tbody>
 <tr>
 <td>2667</td>
 <td><img src="https://img.shields.io/badge/Easy-5CB85C?style=flat-square" alt="Easy"/></td>
-<td><a href="https://leetcode.com/problems/create-hello-world-function/description/?envType=study-plan-v2&envId=30-days-of-javascript">Create Hello World Function</a></td>
-<td><a href="closures/2809-create-hello-world-function.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/create-hello-world-function/">Create Hello World Function</a></td>
+<td><a href="01%20Closures/2809-create-hello-world-function.js">Code</a></td>
 </tr>
 <tr>
 <td>2620</td>
 <td><img src="https://img.shields.io/badge/Easy-5CB85C?style=flat-square" alt="Easy"/></td>
-<td><a href="https://leetcode.com/problems/counter/description/?envType=study-plan-v2&envId=30-days-of-javascript">Counter</a></td>
-<td><a href="closures/2732-counter.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/counter/">Counter</a></td>
+<td><a href="01%20Closures/2732-counter.js">Code</a></td>
 </tr>
 <tr>
 <td>2704</td>
 <td><img src="https://img.shields.io/badge/Easy-5CB85C?style=flat-square" alt="Easy"/></td>
-<td><a href="https://leetcode.com/problems/to-be-or-not-to-be/?envType=study-plan-v2&envId=30-days-of-javascript">To Be Or Not To Be</a></td>
-<td><a href="closures/2813-to-be-or-not-to-be.js ">Code</a></td>
+<td><a href="https://leetcode.com/problems/to-be-or-not-to-be/">To Be Or Not To Be</a></td>
+<td><a href="01%20Closures/2813-to-be-or-not-to-be.js">Code</a></td>
 </tr>
 <tr>
 <td>2665</td>
 <td><img src="https://img.shields.io/badge/Easy-5CB85C?style=flat-square" alt="Easy"/></td>
-<td><a href="https://leetcode.com/problems/counter-ii/description/?envType=study-plan-v2&envId=30-days-of-javascript">Counter II</a></td>
-<td><a href="closures/2789-counter-ii.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/counter-ii/">Counter II</a></td>
+<td><a href="01%20Closures/2789-counter-ii.js">Code</a></td>
 </tr>
 </tbody>
 </table>
@@ -86,65 +86,71 @@ node closures/2667.js
 <th width="100">LeetCode #</th>
 <th width="100">Difficulty</th>
 <th>Problem</th>
-<th width="100">Solution</th>
+<th width="140">Solution</th>
 </tr>
 </thead>
 <tbody>
 <tr>
 <td>2635</td>
 <td><img src="https://img.shields.io/badge/Easy-5CB85C?style=flat-square" alt="Easy"/></td>
-<td><a href="https://leetcode.com/problems/apply-transform-over-each-element-in-array/description/?envType=study-plan-v2&envId=30-days-of-javascript">Apply Transform Over Each Element in Array</a></td>
-<td><a href="basic-array-transformations/2635.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/apply-transform-over-each-element-in-array/">Apply Transform Over Each Element in Array</a></td>
+<td><a href="02%20Basic%20Array%20Transformations/2747-apply-transform-over-each-element-in-array.js">Code</a></td>
 </tr>
 <tr>
 <td>2634</td>
 <td><img src="https://img.shields.io/badge/Easy-5CB85C?style=flat-square" alt="Easy"/></td>
-<td><a href="https://leetcode.com/problems/filter-elements-from-array/description/?envType=study-plan-v2&envId=30-days-of-javascript">Filter Elements from Array</a></td>
-<td><a href="basic-array-transformations/2634.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/filter-elements-from-array/">Filter Elements from Array</a></td>
+<td><a href="02%20Basic%20Array%20Transformations/2746-filter-elements-from-array.js">Code</a></td>
 </tr>
 <tr>
 <td>2626</td>
 <td><img src="https://img.shields.io/badge/Easy-5CB85C?style=flat-square" alt="Easy"/></td>
-<td><a href="https://leetcode.com/problems/array-reduce-transformation/description/?envType=study-plan-v2&envId=30-days-of-javascript">Array Reduce Transformation</a></td>
-<td><a href="basic-array-transformations/2626.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/array-reduce-transformation/">Array Reduce Transformation</a></td>
+<td><a href="02%20Basic%20Array%20Transformations/2761-array-reduce-transformation.js">Code</a></td>
 </tr>
 </tbody>
 </table>
 
-### ⚡ Function Transformations
+### 🧠 Function Transformations
 <table>
 <thead>
 <tr>
 <th width="100">LeetCode #</th>
 <th width="100">Difficulty</th>
 <th>Problem</th>
-<th width="100">Solution</th>
+<th width="140">Solution</th>
 </tr>
 </thead>
 <tbody>
 <tr>
-<td>2629</td>
+<td>2623</td>
 <td><img src="https://img.shields.io/badge/Easy-5CB85C?style=flat-square" alt="Easy"/></td>
-<td><a href="https://leetcode.com/problems/function-composition/description/?envType=study-plan-v2&envId=30-days-of-javascript">Function Composition</a></td>
-<td><a href="function-transformations/2629.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/memoize/">Memoize</a></td>
+<td><a href="03%20Function%20Transformations/2731-memoize.js">Code</a></td>
 </tr>
 <tr>
-<td>2703</td>
+<td>2629</td>
 <td><img src="https://img.shields.io/badge/Easy-5CB85C?style=flat-square" alt="Easy"/></td>
-<td><a href="https://leetcode.com/problems/return-length-of-arguments-passed/description/?envType=study-plan-v2&envId=30-days-of-javascript">Return Length of Arguments Passed</a></td>
-<td><a href="function-transformations/2703.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/function-composition/">Function Composition</a></td>
+<td><a href="03%20Function%20Transformations/2741-function-composition.js">Code</a></td>
 </tr>
 <tr>
 <td>2666</td>
 <td><img src="https://img.shields.io/badge/Easy-5CB85C?style=flat-square" alt="Easy"/></td>
-<td><a href="https://leetcode.com/problems/allow-one-function-call/description/?envType=study-plan-v2&envId=30-days-of-javascript">Allow One Function Call</a></td>
-<td><a href="function-transformations/2666.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/allow-one-function-call/">Allow One Function Call</a></td>
+<td><a href="03%20Function%20Transformations/2796-allow-one-function-call.js">Code</a></td>
 </tr>
 <tr>
-<td>2623</td>
+<td>2703</td>
+<td><img src="https://img.shields.io/badge/Easy-5CB85C?style=flat-square" alt="Easy"/></td>
+<td><a href="https://leetcode.com/problems/return-length-of-arguments-passed/">Return Length of Arguments Passed</a></td>
+<td><a href="03%20Function%20Transformations/2820-return-length-of-arguments-passed.js">Code</a></td>
+</tr>
+<tr>
+<td>2632</td>
 <td><img src="https://img.shields.io/badge/Medium-F0AD4E?style=flat-square" alt="Medium"/></td>
-<td><a href="https://leetcode.com/problems/memoize/description/?envType=study-plan-v2&envId=30-days-of-javascript">Memoize</a></td>
-<td><a href="function-transformations/2623.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/curry/">Curry</a></td>
+<td>Null</td>
 </tr>
 </tbody>
 </table>
@@ -156,57 +162,63 @@ node closures/2667.js
 <th width="100">LeetCode #</th>
 <th width="100">Difficulty</th>
 <th>Problem</th>
-<th width="100">Solution</th>
+<th width="140">Solution</th>
 </tr>
 </thead>
 <tbody>
 <tr>
 <td>2723</td>
 <td><img src="https://img.shields.io/badge/Easy-5CB85C?style=flat-square" alt="Easy"/></td>
-<td><a href="https://leetcode.com/problems/add-two-promises/description/?envType=study-plan-v2&envId=30-days-of-javascript">Add Two Promises</a></td>
-<td><a href="promises-and-time/2723.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/add-two-promises/">Add Two Promises</a></td>
+<td>Null</td>
 </tr>
 <tr>
 <td>2621</td>
 <td><img src="https://img.shields.io/badge/Easy-5CB85C?style=flat-square" alt="Easy"/></td>
-<td><a href="https://leetcode.com/problems/sleep/description/?envType=study-plan-v2&envId=30-days-of-javascript">Sleep</a></td>
-<td><a href="promises-and-time/2621.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/sleep/">Sleep</a></td>
+<td>Null</td>
 </tr>
 <tr>
 <td>2715</td>
 <td><img src="https://img.shields.io/badge/Easy-5CB85C?style=flat-square" alt="Easy"/></td>
-<td><a href="https://leetcode.com/problems/timeout-cancellation/description/?envType=study-plan-v2&envId=30-days-of-javascript">Timeout Cancellation</a></td>
-<td><a href="promises-and-time/2715.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/timeout-cancellation/">Timeout Cancellation</a></td>
+<td>Null</td>
 </tr>
 <tr>
 <td>2725</td>
 <td><img src="https://img.shields.io/badge/Easy-5CB85C?style=flat-square" alt="Easy"/></td>
-<td><a href="https://leetcode.com/problems/interval-cancellation/?envType=study-plan-v2&envId=30-days-of-javascript">Interval Cancellation</a></td>
-<td><a href="promises-and-time/2725.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/interval-cancellation/">Interval Cancellation</a></td>
+<td>Null</td>
 </tr>
 <tr>
 <td>2637</td>
 <td><img src="https://img.shields.io/badge/Medium-F0AD4E?style=flat-square" alt="Medium"/></td>
-<td><a href="https://leetcode.com/problems/promise-time-limit/description/?envType=study-plan-v2&envId=30-days-of-javascript">Promise Time Limit</a></td>
-<td><a href="promises-and-time/2637.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/promise-time-limit/">Promise Time Limit</a></td>
+<td>Null</td>
 </tr>
 <tr>
 <td>2622</td>
 <td><img src="https://img.shields.io/badge/Medium-F0AD4E?style=flat-square" alt="Medium"/></td>
-<td><a href="https://leetcode.com/problems/cache-with-time-limit/description/?envType=study-plan-v2&envId=30-days-of-javascript">Cache With Time Limit</a></td>
-<td><a href="promises-and-time/2622.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/cache-with-time-limit/">Cache With Time Limit</a></td>
+<td>Null</td>
 </tr>
 <tr>
 <td>2627</td>
 <td><img src="https://img.shields.io/badge/Medium-F0AD4E?style=flat-square" alt="Medium"/></td>
-<td><a href="https://leetcode.com/problems/debounce/description/?envType=study-plan-v2&envId=30-days-of-javascript">Debounce</a></td>
-<td><a href="promises-and-time/2627.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/debounce/">Debounce</a></td>
+<td>Null</td>
 </tr>
 <tr>
 <td>2721</td>
 <td><img src="https://img.shields.io/badge/Medium-F0AD4E?style=flat-square" alt="Medium"/></td>
-<td><a href="https://leetcode.com/problems/execute-asynchronous-functions-in-parallel/description/?envType=study-plan-v2&envId=30-days-of-javascript">Execute Asynchronous Functions in Parallel</a></td>
-<td><a href="promises-and-time/2721.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/execute-asynchronous-functions-in-parallel/">Execute Asynchronous Functions in Parallel</a></td>
+<td>Null</td>
+</tr>
+<tr>
+<td>2676</td>
+<td><img src="https://img.shields.io/badge/Medium-F0AD4E?style=flat-square" alt="Medium"/></td>
+<td><a href="https://leetcode.com/problems/throttle/">Throttle</a></td>
+<td>Null</td>
 </tr>
 </tbody>
 </table>
@@ -218,57 +230,69 @@ node closures/2667.js
 <th width="100">LeetCode #</th>
 <th width="100">Difficulty</th>
 <th>Problem</th>
-<th width="100">Solution</th>
+<th width="140">Solution</th>
 </tr>
 </thead>
 <tbody>
 <tr>
 <td>2727</td>
 <td><img src="https://img.shields.io/badge/Easy-5CB85C?style=flat-square" alt="Easy"/></td>
-<td><a href="https://leetcode.com/problems/is-object-empty/description/?envType=study-plan-v2&envId=30-days-of-javascript">Is Object Empty</a></td>
-<td><a href="json/2727.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/is-object-empty/">Is Object Empty</a></td>
+<td>Null</td>
 </tr>
 <tr>
 <td>2677</td>
 <td><img src="https://img.shields.io/badge/Easy-5CB85C?style=flat-square" alt="Easy"/></td>
-<td><a href="https://leetcode.com/problems/chunk-array/description/?envType=study-plan-v2&envId=30-days-of-javascript">Chunk Array</a></td>
-<td><a href="json/2677.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/chunk-array/">Chunk Array</a></td>
+<td>Null</td>
 </tr>
 <tr>
 <td>2619</td>
 <td><img src="https://img.shields.io/badge/Easy-5CB85C?style=flat-square" alt="Easy"/></td>
-<td><a href="https://leetcode.com/problems/array-prototype-last/description/?envType=study-plan-v2&envId=30-days-of-javascript">Array Prototype Last</a></td>
-<td><a href="json/2619.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/array-prototype-last/">Array Prototype Last</a></td>
+<td>Null</td>
 </tr>
 <tr>
 <td>2631</td>
 <td><img src="https://img.shields.io/badge/Medium-F0AD4E?style=flat-square" alt="Medium"/></td>
-<td><a href="https://leetcode.com/problems/group-by/description/?envType=study-plan-v2&envId=30-days-of-javascript">Group By</a></td>
-<td><a href="json/2631.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/group-by/">Group By</a></td>
+<td>Null</td>
 </tr>
 <tr>
 <td>2724</td>
 <td><img src="https://img.shields.io/badge/Easy-5CB85C?style=flat-square" alt="Easy"/></td>
-<td><a href="https://leetcode.com/problems/sort-by/description/?envType=study-plan-v2&envId=30-days-of-javascript">Sort By</a></td>
-<td><a href="json/2724.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/sort-by/">Sort By</a></td>
+<td>Null</td>
 </tr>
 <tr>
 <td>2722</td>
 <td><img src="https://img.shields.io/badge/Medium-F0AD4E?style=flat-square" alt="Medium"/></td>
-<td><a href="https://leetcode.com/problems/join-two-arrays-by-id/description/?envType=study-plan-v2&envId=30-days-of-javascript">Join Two Arrays by ID</a></td>
-<td><a href="json/2722.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/join-two-arrays-by-id/">Join Two Arrays by ID</a></td>
+<td>Null</td>
 </tr>
 <tr>
 <td>2625</td>
 <td><img src="https://img.shields.io/badge/Medium-F0AD4E?style=flat-square" alt="Medium"/></td>
-<td><a href="https://leetcode.com/problems/flatten-deeply-nested-array/description/?envType=study-plan-v2&envId=30-days-of-javascript">Flatten Deeply Nested Array</a></td>
-<td><a href="json/2625.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/flatten-deeply-nested-array/">Flatten Deeply Nested Array</a></td>
+<td>Null</td>
 </tr>
 <tr>
 <td>2705</td>
 <td><img src="https://img.shields.io/badge/Medium-F0AD4E?style=flat-square" alt="Medium"/></td>
-<td><a href="https://leetcode.com/problems/compact-object/description/?envType=study-plan-v2&envId=30-days-of-javascript">Compact Object</a></td>
-<td><a href="json/2705.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/compact-object/">Compact Object</a></td>
+<td>Null</td>
+</tr>
+<tr>
+<td>2628</td>
+<td><img src="https://img.shields.io/badge/Medium-F0AD4E?style=flat-square" alt="Medium"/></td>
+<td><a href="https://leetcode.com/problems/json-deep-equal/">JSON Deep Equal</a></td>
+<td>Null</td>
+</tr>
+<tr>
+<td>2675</td>
+<td><img src="https://img.shields.io/badge/Medium-F0AD4E?style=flat-square" alt="Medium"/></td>
+<td><a href="https://leetcode.com/problems/array-of-objects-to-matrix/">Array of Objects to Matrix</a></td>
+<td>Null</td>
 </tr>
 </tbody>
 </table>
@@ -280,27 +304,33 @@ node closures/2667.js
 <th width="100">LeetCode #</th>
 <th width="100">Difficulty</th>
 <th>Problem</th>
-<th width="100">Solution</th>
+<th width="140">Solution</th>
 </tr>
 </thead>
 <tbody>
 <tr>
 <td>2694</td>
 <td><img src="https://img.shields.io/badge/Medium-F0AD4E?style=flat-square" alt="Medium"/></td>
-<td><a href="https://leetcode.com/problems/event-emitter/description/?envType=study-plan-v2&envId=30-days-of-javascript">Event Emitter</a></td>
-<td><a href="classes/2694.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/event-emitter/">Event Emitter</a></td>
+<td>Null</td>
 </tr>
 <tr>
 <td>2695</td>
 <td><img src="https://img.shields.io/badge/Easy-5CB85C?style=flat-square" alt="Easy"/></td>
-<td><a href="https://leetcode.com/problems/array-wrapper/description/?envType=study-plan-v2&envId=30-days-of-javascript">Array Wrapper</a></td>
-<td><a href="classes/2695.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/array-wrapper/">Array Wrapper</a></td>
+<td>Null</td>
 </tr>
 <tr>
 <td>2726</td>
 <td><img src="https://img.shields.io/badge/Easy-5CB85C?style=flat-square" alt="Easy"/></td>
-<td><a href="https://leetcode.com/problems/calculator-with-method-chaining/description/?envType=study-plan-v2&envId=30-days-of-javascript">Calculator with Method Chaining</a></td>
-<td><a href="classes/2726.js">Code</a></td>
+<td><a href="https://leetcode.com/problems/calculator-with-method-chaining/">Calculator with Method Chaining</a></td>
+<td>Null</td>
+</tr>
+<tr>
+<td>2618</td>
+<td><img src="https://img.shields.io/badge/Medium-F0AD4E?style=flat-square" alt="Medium"/></td>
+<td><a href="https://leetcode.com/problems/check-if-object-instance-of-class/">Check if Object Instance of Class</a></td>
+<td>Null</td>
 </tr>
 </tbody>
 </table>
@@ -309,11 +339,11 @@ node closures/2667.js
 
 ```
 Total Problems: 30
-├── Easy: 20
-├── Medium: 10
+├── Easy: 11
+├── Medium: 0
 └── Hard: 0
 
-Completion: 0% ████████████████████ 
+Completion: 37% ██████████████░░░░░░░
 ```
 
 ## 🤝 Contributing