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Master Technical Interviews the JavaScript Way

Unlock in-depth knowledge and practical skills to ace your coding interviews with confidence. Tailored specifically for JavaScript and TypeScript engineers.

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merge-intervals.js
function mergeIntervals(intervals) {
  if (!intervals.length) return intervals;
  intervals.sort((a, b) => a[0] - b[0]);
  let result = [intervals[0]];
  for (let i = 1; i < intervals.length; i++) {
    let prev = result[result.length - 1];
    let curr = intervals[i];
    if (prev[1] >= curr[0]) {
      prev[1] = Math.max(prev[1], curr[1]);
    } else {
      result.push(curr);
    }
  }
  return result;
}

Why Memoized?

Transform your interview preparation with a comprehensive dual-track approach, designed specifically for JavaScript engineers.

  • Depth and Practical Insights

    Go beyond basics with in-depth explanations and real-world applications that ensure comprehensive understanding of each topic.

  • Focus on JavaScript

    Tailored for JavaScript and TypeScript developers, making concepts more relevant and immediately applicable to your work.

  • Interview-Ready

    Equips you with techniques and strategies to confidently tackle technical interviews and common coding challenges.

  • Expert Tips and Tricks

    Gain insider knowledge from an industry expert, with practical tips and common pitfalls to avoid during interviews.

  • Interactive Learning

    Reinforce concepts through hands-on coding challenges that build practical application skills for real-world scenarios.

  • Advanced Topics

    Dive deep into sophisticated algorithms and modern frontend architectures to stand out in technical interviews.

Content overview

Comprehensive interview preparation covering algorithmic problem-solving and advanced JavaScript/TypeScript concepts for modern development

JS Track

Master JavaScript concepts and principles through theoretical foundations and interview questions

Core Fundamentals

TypeScript Introduction

Frontend Development

Advanced Concepts

DSA Track

Master algorithmic problem solving through practical examples and real interview challenges

Built-In Data Structures

User-Defined Data Structures

Common Techniques

Advanced Topics

What makes this approach different

I built this platform to address what I found lacking in my own interview preparation journey. The curriculum covers both data structures & algorithms and advanced JavaScript concepts

  • Practical insights from experience - Each lesson includes real-world examples and common pitfalls I’ve encountered in my own development and interviewing journey.
  • Interview-focused approach - Content is designed with technical interviews in mind, helping you explain complex concepts clearly and showcase your skills effectively.
  • Learn from mistakes - I’ve documented common errors that trip up candidates, helping you avoid these same pitfalls during your interviews.
  • Practical application context - Understand not just how algorithms and JavaScript features work, but when and why to apply them in actual development scenarios.
  • Beyond the basics - Covering advanced topics from sophisticated algorithms to modern JavaScript patterns and TypeScript features that most courses overlook.

Modern Technical Interviews Require Both Skills

Whether you’re interviewing at tech giants or growing startups, you’ll need to demonstrate both algorithmic problem-solving abilities and deep JavaScript knowledge. This platform helps you master both aspects, preparing you for the complete interview experience at companies like:

User progress

Track Your Progress

Memoized tracks your progress as you complete lessons, helping you see your achievements and identify areas for improvement.

Stay motivated by visualizing your learning journey and achieving your goals more efficiently.

New content is added regularly, giving you access to the latest resources and tools for success in technical interviews.

Practice problems

Solve Problems

Access over 450 diverse practice problems and questions. Each problem is categorized by topic and aligned with the lessons, ensuring targeted and effective practice.

Problems range from beginner to advanced levels, helping you build and strengthen your skills progressively.

Regular practice reinforces concepts, improves problem-solving skills, and boosts your confidence for technical interviews.

User progress

Track Your Progress

Memoized tracks your progress as you complete lessons, helping you see your achievements and identify areas for improvement.

Stay motivated by visualizing your learning journey and achieving your goals more efficiently.

New content is added regularly, giving you access to the latest resources and tools for success in technical interviews.

Author picture

Hello, I’m Mario, creator of Memoized.

After spending years interviewing candidates and mentoring developers, I noticed a gap in how engineers prepare for technical interviews. Most platforms focus on either algorithms or JavaScript concepts, but rarely both. That’s why I created this platform.

Through my experience both giving and taking technical interviews, I’ve learned what makes candidates successful. I’ve structured this platform to focus on what actually matters: strong algorithmic thinking and deep JavaScript knowledge.

Whether you’re preparing for your next interview or simply want to deepen your understanding of algorithms and JavaScript, I’m here to help you succeed. This isn’t just another course platform — it’s the resource I wish I had when I was preparing for interviews.

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