Selecting "href" Value for JavaScript Links: "#" versus "javascript:void(0)"

Liam Lambert
Monday, June 17, 2024 at 10:11:00 AM
HTML

Optimal href Values for JavaScript Links

Developers discuss whether to use

Using "href='javascript:void(0)'" How to Execute JavaScript Code

HTML and JavaScript Example

<!DOCTYPE html>
<html>
<head>
<title>JavaScript Link Example</title>
<script>
function myJsFunc() {
  alert("myJsFunc");
}
</script>
</head>
<body>
<a href="javascript:void(0)" onclick="myJsFunc();">Run JavaScript Code</a>
</body>
</html>

Choosing JavaScript Links' Appropriate href Value

The effects on web standards and user experience should be taken into account when choosing between and for JavaScript links. The technique is well-known and practical, but it has a disadvantage in that it defaults to the top of the page, which may cause the user's scroll position to be disturbed. On lengthy pages, where visitors could lose their place after clicking the link, this can be particularly problematic. Furthermore, utilizing href="#" might unintentionally disrupt the website's accessibility and navigational flow.

However, provides a more hygienic alternative by completely blocking the link's default behavior. This makes sure that the user's scroll position is unaffected and that no undesired navigational behaviors are introduced by the link. Using also makes the link more consistent with contemporary web development principles, as it makes it obvious that its purpose is to run JavaScript code only. This strategy can enhance the readability and maintainability of the code, making it simpler for other developers to comprehend the link's purpose.

  1. In a link, what does accomplish?
  2. generates a hyperlink pointing to the page's top.
  3. Why is using recommended?
  4. stops the hyperlink from doing its default action and stops any accidental page scrolling or navigation.
  5. Does the performance of and differ from one another?
  6. Although does not significantly affect performance, it can make the user experience more seamless by reducing needless scrolling.
  7. Which approach is more accessible?
  8. is usually preferable for accessibility since it doesn't interfere with the user's flow of navigation.
  9. Can I use links that aren't JavaScript using ?
  10. Yes, but it's preferable to manage navigation with a suitable JavaScript function or a working URL.
  11. What disadvantages come with utilizing ?
  12. The main disadvantage is that it could make the website scroll to the top, which could be annoying for the user.
  13. How does Using these href values affect ?
  14. Regardless of the value, clicking the link triggers the execution of JavaScript code via the attribute.
  15. Is the URL legitimate?
  16. Indeed, is a legitimate URL that, when clicked, does nothing.

Concluding Remarks on JavaScript Values for the link href

In summary, whereas and can both be used to create JavaScript links, their functions are distinct. is simple, however it can make the website scroll, which would be inconvenient for the user. On the other hand, by blocking any default action, href="javascript:void(0)" guarantees a more seamless interaction. is usually the better option for modern web development because it handles JavaScript execution more cleanly and doesn't change the state of the page.