refactor: folder structure

data_structures/README.md

@@ -1,14 +1,14 @@
-# Java Data Structures and Algorithms
+# Java Data Structures and Algorithms and Javascript DeepDive
 
 This section contains Data Structure and Algorithms in Java, Typescript and Frontend (Reactjs).
 
 ## Contents
 
 - [Data Structures](./src/DataStructures)
-- [Algorithms](./src/Algorithms)
-- [NeetCode 150](./neetcode_150/)
+- [Algorithms](./src/Algorithms/README.md)
+- [NeetCode 150](./src/neetcode_150/README.md)
 - [Javascript Questions](./js_questions)
-- [Time and Space Complexity](./time_space_complexity/README.md)
+- [Time and Space Complexity](./src/TimeSpaceComplexity/README.md)
 
 **Patterns**
 

data_structures/js_questions/concurrency/process_images.ts

@@ -0,0 +1,29 @@
+const processImage = (image: string) => {
+  return new Promise<string>((resolve) => {
+    setTimeout(() => {
+      console.log(`Processes ${image}`);
+      resolve(image);
+    }, 1000);
+  });
+};
+
+async function ProcessImagesConcurrently(images: string[], maxConcurrent: number) {
+  const results: string[] = [];
+  const queue: Promise<number>[] = [];
+
+  for (let i = 0; i < images.length; i++) {
+    const currentImage = images[i];
+
+    const task = processImage(currentImage).then((result) => results.push(result));
+    queue.push(task);
+
+    if (queue.length >= maxConcurrent) {
+      await Promise.race(queue);
+    }
+  }
+
+  await Promise.all(queue);
+
+  console.log('all images processed : ', results);
+}
+ProcessImagesConcurrently(['image1', 'image2', 'image3', 'image4', 'image5'], 3);

data_structures/src/Algorithms/README.md

@@ -0,0 +1 @@
+# Algorithms