Com activar/desactivar un botó amb jQuery?
Habilitar/desactivar un botó amb jQuery implica alterar la seva funcionalitat per acceptar l'entrada de l'usuari o no. Normalment, això es fa manipulant la seva propietat o atribut 'desactivat' mitjançant mètodes jQuery com '.prop()' o '.attr()'.
Per activar/desactivar un botó amb jQuery, necessitareu una estructura HTML bàsica juntament amb JavaScript/jQuery. A continuació es mostra una estructura de codi senzilla per començar
HTML Botó Habilita/Desactiva el títol> <script src= 'https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js'>guió> cap> <body> <button id='myButton'>Feu clic al botó Me> <script>$(document).ready(function(){ // Codi jQuery per activar/desactivar el botó // Afegeix el teu codi aquí }); script> body> html>> </pre> </code> <p dir='ltr'> <br> </p> <h2> <span>Exemples d'activació/desactivació d'un botó amb jQuery </span> </h2> <h3> <span>1. Utilitzant el mètode .prop(): </span> </h3> <p dir='ltr'> <span>Utilitzant </span> <span>.prop() a jQuery </span> <span>habilitar/desactivar un botó implica establir la seva propietat 'desactivada' a vertadera o falsa, proporcionant un control eficient sobre la seva interactivitat basat en els requisits de l'aplicació i les interaccions de l'usuari. </span> </p> <p dir='ltr'> <b> <strong>Exemple: </strong> </b> <span>En aquest exemple, estem utilitzant jQuery: Commuta la propietat 'desactivada' del botó en esdeveniments de clic i de doble clic per a una interacció fluida de l'usuari mitjançant el mètode .prop(). </span> </p>HTML <code> <pre> <html> <head> <script src= 'https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js'>guió> cap> <body> <h3>Utilitzant el mètode .prop()3> <button id='update'>actualitza'm el botó> <div style='margin-top: 50px'> <button id='change'>feu clic al botó meu> div> <script>$('#canvi').on('clic', funció () { $('#actualització').prop('desactivat', veritable); }); $('#change').on( 'dblclick', funció () { $('#update').prop( 'disabled', false ); } ); script> body> html>> </pre> </code> <p dir='ltr'> <b> <strong>Sortida: </strong> </b> </p> <img src='//techcodeview.com/img/blogathon-2021/17/how-enable-disable-button-using-jquery.webp' alt='JqueryToggle'> <p>Mètode .prop() Exemple Sortida </p> <h3> <span>2. Utilitzant el mètode .attr(). </span> </h3> <p dir='ltr'> <span>Utilitzant el </span> <span>Mètode .attr(). </span> <span>a jQuery, activeu l'atribut 'desactivat' dels elements. Si feu clic a un botó, es desactiva un altre, mentre que fent doble clic el torna a activar, millorant la interacció i la funcionalitat de l'usuari a les pàgines web. </span> </p> <p dir='ltr'> <b> <strong>Exemple: </strong> </b> <span>En aquest exemple estem utilitzant el mètode .attr() per activar/desactivar el botó. En fer clic es desactiva un altre botó; fer doble clic el torna a activar, millorant la interacció de l'usuari i la funcionalitat web. </span> </p>HTML <code> <pre> <html> <head> <script src= 'https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js'>guió> cap> <body> <h3>Utilitzant el mètode .attr()3> <button id='update'>Actualitza Mebutton> <div style='margin-top: 50px;'> <button id='change'>Feu clic a Mebutton> div> <script>$('#canvi').on('clic', funció () { $('#actualització').attr('desactivat', 'desactivat'); }); $('#change').on('dblclick', function () { $('#update').removeAttr('disabled'); }); script> body> html>> </pre> </code> <p dir='ltr'> <b> <strong>Sortida: </strong> </b> </p> <p> <br> </p> <img src='//techcodeview.com/img/blogathon-2021/17/how-enable-disable-button-using-jquery-2.webp' alt='JqueryToggle2'> <p>Mètode .attr() Exemple de sortida </p> <p> <br> </p> <br> <br>
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