JavascriptHow-ToBeginner · 3 min read

How to Scroll to Top in JavaScript: Simple Methods Explained

To scroll to the top in JavaScript, use window.scrollTo(0, 0) or window.scroll({ top: 0, behavior: 'smooth' }) for smooth scrolling. These commands move the page view to the top instantly or smoothly.

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Syntax

The main ways to scroll to the top are:

window.scrollTo(x, y): Scrolls instantly to the coordinates (x, y). Use window.scrollTo(0, 0) to go to the top-left corner.
window.scroll(options): Scrolls with options like smooth behavior. Example: window.scroll({ top: 0, behavior: 'smooth' }).

javascript

window.scrollTo(0, 0);

// or with smooth behavior
window.scroll({ top: 0, behavior: 'smooth' });

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Example

This example shows a button that scrolls the page to the top smoothly when clicked.

html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Scroll to Top Example</title>
  <style>
    body {
      height: 2000px;
      padding: 20px;
      font-family: Arial, sans-serif;
    }
    button {
      position: fixed;
      bottom: 30px;
      right: 30px;
      padding: 10px 15px;
      font-size: 16px;
      cursor: pointer;
    }
  </style>
</head>
<body>
  <button id="scrollTopBtn">Scroll to Top</button>

  <script>
    const btn = document.getElementById('scrollTopBtn');
    btn.addEventListener('click', () => {
      window.scroll({ top: 0, behavior: 'smooth' });
    });
  </script>
</body>
</html>

Output

A webpage with a tall page and a button at bottom-right; clicking the button smoothly scrolls the page to the top.

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Common Pitfalls

Common mistakes include:

Using window.scrollTo without coordinates, which does nothing.
Expecting smooth scrolling without specifying behavior: 'smooth'.
Trying to scroll elements that are not scrollable or forgetting to target the right element.

javascript

/* Wrong: no coordinates */
window.scrollTo(); // Does nothing

/* Right: specify coordinates */
window.scrollTo(0, 0);

/* Wrong: smooth behavior missing */
window.scroll({ top: 0 }); // Instant scroll

/* Right: smooth scroll */
window.scroll({ top: 0, behavior: 'smooth' });

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Quick Reference

Method	Description	Example
window.scrollTo(x, y)	Scroll instantly to coordinates	window.scrollTo(0, 0)
window.scroll(options)	Scroll with options like smooth behavior	window.scroll({ top: 0, behavior: 'smooth' })

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Key Takeaways

Use window.scrollTo(0, 0) to jump instantly to the top of the page.

Use window.scroll({ top: 0, behavior: 'smooth' }) for smooth scrolling effect.

Always specify coordinates or options; calling scroll functions without them does nothing.

Make sure the page or element is scrollable to see the effect.

Attach scroll commands to events like button clicks for user interaction.