Phase 1 complete

Learn DSA From Beginner to Advanced

DSA is taught here as a practical skill: first the idea, then a tiny example, then practice that proves you can use it without copying.

Start learning Try online editor Take quiz Practice exercises

What is DSA?

DSA is a practical developer skill for solving a specific class of problems. In Anku Learn, you study it through simple explanations, examples, practice, quizzes and projects instead of isolated definitions.

Why learn DSA?

DSA appears in real developer workflows.
It strengthens debugging and problem solving.
It connects directly to projects, quizzes and tools inside Anku Learn.

What you will learn

Explain core DSA concepts clearly
Build small DSA examples
Solve beginner to advanced DSA practice tasks
Prepare for DSA interview questions

How DSA works

DSA works best when you understand the input, choose the right concept, run a small example, inspect the output, then reuse the pattern in a real task.

Where DSA is used

DSA is used when teams need to find the result efficiently.
It commonly appears in an interview-ready solution, using numbers, strings and edge cases.
It is useful in debugging because the input, rule and output are visible in a small example.

Real-world use cases

Build an interview-ready solution from a small, testable starting point.
Use numbers, strings and edge cases to practice real inputs instead of placeholder text.
Prepare interview answers with a code sample, expected output and one tradeoff.
Connect DSA lessons with examples, practice, projects and tools.

Who should learn this?

Beginners who want a clear first path into DSA.
Developers who need practical DSA review before a project or interview.
Students who learn better from examples, quizzes and small tasks.

Prerequisites

Basic computer usage
A code editor or online editor
Willingness to practice small examples

DSA lessons

A complete path with practical examples, output checks and practice tasks.

30 lessons

Important concepts

DSA Introduction Time Complexity Space Complexity Arrays Strings Objects and Hash Maps Recursion Sorting Searching Stack Queue Linked List

Syntax overview

function uniqueValues(values) {
  const seen = new Set();
  return values.filter((value) => {
    if (seen.has(value)) return false;
    seen.add(value);
    return true;
  });
}

Try DSA online

Open the topic editor when you want to run a lesson snippet, test a variation, or compare your practice solution with the example output.

Open DSA editor Practice exercises Roadmap

Examples

Beginner, intermediate, advanced and real-world examples with output and explanations.

All examples

DSA Introduction example 1

A focused DSA example for dsa introduction with output and explanation.

beginnerbasic

Time Complexity example 2

A focused DSA example for time complexity with output and explanation.

beginnersyntax

Space Complexity example 3

A focused DSA example for space complexity with output and explanation.

beginnerreal-world

Arrays example 4

A focused DSA example for arrays with output and explanation.

beginnerinterview

Strings example 5

A focused DSA example for strings with output and explanation.

beginnerproject

Objects and Hash Maps example 6

A focused DSA example for objects and hash maps with output and explanation.

beginnercommon-error

Common mistakes

Trying to learn DSA by memorizing definitions before running examples.
Skipping small edge cases and only testing the happy path.
Copying code without explaining each line in your own words.
Ignoring error messages instead of using them as debugging clues.

Best practices

Learn DSA through tiny working examples before building larger features.
Keep names, structure and output simple enough for a teammate to scan.
Practice one concept, one example and one edge case in each session.
Review mistakes after quizzes and turn weak topics into practice tasks.