What Does 'javascript:void(0)' Do in HTML Anchor Tags?

Understanding "https://www.php.cn/link/7c127e0c66f06e58c7c7310a7c6fa488"

A common HTML element, login), it prevents the browser from navigating to a different page.

Technical Explanation:

The void operator discards the result of an expression, returning https://www.php.cn/link/afeae7504d214a43ca689bc1d0999930. In the case of "https://www.php.cn/link/7c127e0c66f06e58c7c7310a7c6fa488", "0" is evaluated to the number 0, and the void operator then returns https://www.php.cn/link/afeae7504d214a43ca689bc1d0999930. Thus, the href attribute effectively translates to "javascript:https://www.php.cn/link/afeae7504d214a43ca689bc1d0999930".

Usage with login. However, this approach may not always work consistently across browsers.

Conclusion:

"https://www.php.cn/link/7c127e0c66f06e58c7c7310a7c6fa488" is a shorthand method to prevent JavaScript from navigating to a new page when an anchor element is clicked. It is commonly used to create click handlers that execute JavaScript without triggering page reloads.

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