JavaScript Coding Problems

JavaScript programming challenges

64
Total Problems
29
Easy
29
Medium
6
Hard
Start Practicing
JS

Master DSA Topics - February, 2026

Practice problems across 75+ categories

JavaScript Coding Problems

Practice problems frequently asked at JavaScript 64 problems | 29 Easy | 29 Medium | 6 Hard

# Problem Difficulty Topics
31 Flatten Deeply Nested Array Medium
JavaScript
32 Function Composition Easy
JavaScript
33 Generate Circular Array Values Medium
JavaScript
34 Generate Fibonacci Sequence Easy
JavaScript
35 Group By Medium
JavaScript
36 Immutability Helper Hard
JavaScript
37 Infinite Method Object Easy
JavaScript
38 Interval Cancellation Easy
JavaScript
39 Is Object Empty Easy
JavaScript
40 Join Two Arrays by ID Medium
JavaScript
41 JSON Deep Equal Medium
JavaScript
42 Make Object Immutable Medium
JavaScript
43 Memoize Medium
JavaScript
44 Memoize II Hard
JavaScript
45 Nested Array Generator Medium
JavaScript
Showing 31-45 of 64
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public class MyFirstJavaProgram { Edit & Run

   /* This is my first java program.
    * This will print 'Hello, World!' as the output
    */

   public static void main(String []args) {
      System.out.println("Hello, World!"); // prints
   }
}

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