Stack/stack-frame-visualizer.html at main · arundada9000/Stack · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Call Stack Visualizer: See How Function Calls Stack Up</title>
<meta name="description" content="Visualize the call stack in real time. Watch function calls push frames and returns pop them. Understand recursion, stack overflow, and tail calls with animated frames.">
<meta name="keywords" content="call stack visualizer, function call stack, recursion visualizer, stack frames, stack overflow, programming visualizer">
<meta name="author" content="Arun Neupane">
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<meta property="og:description" content="Visualize the call stack in real time. Watch function calls push frames and returns pop them.">
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</script>
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      <h1>Call Stack Visualizer</h1>
      <p class="hero__lead">Watch function calls push frames onto the stack and returns pop them off. See recursion, branching, and stack overflow in action with step-by-step animation.</p>
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        <button type="button" class="btn btn--accent" id="factorialBtn">Run factorial(4) <kbd>1</kbd></button>
        <button type="button" class="btn btn--accent" id="fibonacciBtn">Run fibonacci(5) <kbd>2</kbd></button>
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  </section>

  <section class="section" data-reveal>
    <div class="shell">
      <h2 class="section__title">Step Log</h2>
      <p class="section__desc">Each push and pop of a stack frame is recorded here.</p>
      <div class="step-log" id="stepLog" role="log" aria-live="polite" aria-label="Operation log"></div>
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          <summary><span class="q-mark">Q</span> What is a call stack?</summary>
          <div class="faq-item__body"><p>A call stack is a data structure that your programming language uses to keep track of active function calls. When a function is called, a frame is pushed onto the stack. When it returns, the frame is popped. This visualizer shows that process step by step.</p></div>
        </details>
        <details class="faq-item">
          <summary><span class="q-mark">Q</span> What is stack overflow?</summary>
          <div class="faq-item__body"><p>Stack overflow happens when too many frames are pushed onto the call stack without any returning. This usually occurs with runaway recursion. The visualizer demonstrates this with deeply nested function calls.</p></div>
        </details>
        <details class="faq-item">
          <summary><span class="q-mark">Q</span> Can I slow down the animation?</summary>
          <div class="faq-item__body"><p>Yes. Use the speed slider at the top of the tool to adjust the delay between steps. You can set it from 100ms (fast) to 2000ms (slow) to follow each frame push and pop carefully.</p></div>
        </details>
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