¿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.
Ejemplo:
HTML 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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