¿Qué significa javascript:void(0)?

¿Qué significa javascript:void(0)?

En JavaScript, javascript:void(0) es una pseudo-URL que no hace nada cuando se hace clic en ella. Se usa comúnmente como marcador de posición en los atributos href para evitar que el navegador navegue a una nueva página mientras aún ejecuta código JavaScript.

Usando # en una etiqueta de anclaje

Al escribir el siguiente código en el editor, la página web se actualiza después de que se muestra el mensaje de alerta.

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          techcodeview.comtitle> <style>h1 {color: verde;  } estilo> cabeza> <body>  <h1>Portaltecnico.proh1> <h3>sin JavaScript:void(0)h3> <a href='#' ondblclick='alert('Welcome to Geeks for Geeks')'>Haz doble clic en mí a> <a href='#' ondblclick='geeks()'>Haz doble clic en mí a> <script>function geeks() { document.getElementById('gfg').innerHTML = 'Bienvenido a techcodeview.com';  } guión> <p id='gfg'>p>cuerpo>html> </pre>  </code>  <p dir='ltr'>  <b>  <strong>Producción: </strong>  </b>  <span>  </span> </p>  <img src='//techcodeview.com/img/javascript-questions/07/what-does-javascript.webp' alt='¿Qué significa javascript:void(0)?'> <p>¿Qué significa javascript:void(0)? </p>  <h2>  <b>  <strong>Usando javascript:void(0); en etiqueta de anclaje </strong>  </b>  </h2> <p dir='ltr'> <span>Escribiendo javascript:void(0); en la etiqueta de anclaje puede evitar que la página se recargue y las funciones de JavaScript se pueden invocar fácilmente con un clic o dos clics. </span> </p>  <p dir='ltr'>  <b>  <strong>Ejemplo: </strong>  </b>  <span>  </span> </p>HTML <code>  <pre>  <html lang='en'>  <head>  <meta charset='UTF-8'>  <meta name='viewport' content='width=device-width,   initial-scale=1.0'>  <title>techcodeview.comtitle> <style>h1 {color: verde;  } estilo> cabeza> <body>  <h1>Portaltecnico.proh1> <h3>JavaScript: vacío (0) h3> <a href='javascript:void(0);' ondblclick='geek()'>Haz doble clic en mí a> <p id='gfg'>p> <script>function geek() { document.getElementById('gfg').innerHTML = 'Bienvenido a techcodeview.com';  } script> cuerpo> html> </pre>  </code>  <p dir='ltr'>  <b>  <strong>Producción: </strong>  </b>  <span>  </span> </p>  <img src='//techcodeview.com/img/javascript-questions/07/what-does-javascript-2.webp' alt='¿Qué significa javascript:void(0)?'> <p>¿Qué significa javascript:void(0)? </p>  <br>
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