Ako povoliť / zakázať tlačidlo pomocou jQuery?

Ako povoliť / zakázať tlačidlo pomocou jQuery?

Povolenie/zakázanie tlačidla pomocou jQuery zahŕňa zmenu jeho funkčnosti tak, aby buď akceptovala vstup používateľa, alebo nie. Zvyčajne sa to robí manipuláciou s jeho vlastnosťou alebo atribútom „disabled“ prostredníctvom metód jQuery, ako sú „.prop()“ alebo „.attr()“.

Ak chcete povoliť/zakázať tlačidlo pomocou jQuery, budete potrebovať základnú štruktúru HTML spolu s JavaScriptom/jQuery. Nižšie je uvedená jednoduchá štruktúra kódu, ktorá vám pomôže začať

HTML
          Tlačidlo Povoliť/Zakázať názov> <script src= 'https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js'>skript> hlava> <body>  <button id='myButton'>Kliknite na tlačidlo Me> <script>$(document).ready(function(){ // tlačidlo jQuery na aktiváciu/deaktiváciu // Sem pridajte svoj kód });  script> body> html> </pre>  </code>  <p dir='ltr'>  <br> </p>  <h2> <span>Príklady povolenia/zakázania tlačidla pomocou jQuery </span> </h2> <h3> <span>1. Pomocou metódy .prop(): </span> </h3> <p dir='ltr'> <span>Použitím </span>  <span>.prop() v jQuery </span>  <span>aktivácia/deaktivácia tlačidla zahŕňa nastavenie jeho vlastnosti „disabled“ na hodnotu true alebo false, čo poskytuje efektívnu kontrolu nad jeho interaktivitou na základe požiadaviek aplikácie a interakcií používateľa. </span> </p>  <p dir='ltr'>  <b>  <strong>Príklad: </strong>  </b>  <span>V tomto príklade používame jQuery: Prepína vlastnosť tlačidla „vypnuté“ pri udalostiach kliknutia a dvojitého kliknutia na hladkú interakciu používateľa pomocou metódy .prop(). </span> </p>HTML <code>  <pre>  <html>  <head>  <script src= 'https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js'>skript> hlava> <body>  <h3>Pomocou metódy .prop()h3> <button id='update'>tlačidlo aktualizovať> <div style='margin-top: 50px'>  <button id='change'>kliknite na tlačidlo me> div> <script>$('#change').on('kliknutie', funkcia () { $('#update').prop( 'zakázané', pravda ); });  $('#change').on( 'dblclick', funkcia () { $('#update').prop( 'disabled', false ); } );  script> body> html> </pre>  </code>  <p dir='ltr'>  <b>  <strong>Výkon: </strong>  </b>  </p>  <img src='//techcodeview.com/img/blogathon-2021/17/how-enable-disable-button-using-jquery.webp' alt='JqueryToggle'> <p>Metóda .prop() Príklad Výstup </p>  <h3> <span>2. Pomocou metódy .attr(). </span> </h3> <p dir='ltr'> <span>Pomocou </span>  <span>metóda .attr(). </span>  <span>v jQuery prepínate atribút „disabled“ prvkov. Kliknutím na tlačidlo deaktivujete iné tlačidlo, zatiaľ čo dvojitým kliknutím ho znova aktivujete, čím sa zlepší interakcia používateľa a funkčnosť v rámci webových stránok. </span> </p>  <p dir='ltr'>  <b>  <strong>Príklad: </strong>  </b>  <span>V tomto príklade používame metódu .attr() na zapnutie/vypnutie tlačidla. Kliknutím deaktivujete ďalšie tlačidlo; dvojitým kliknutím ho znova aktivujete, čím sa zlepší interakcia používateľa a funkčnosť webu. </span> </p>HTML <code>  <pre>  <html>  <head>  <script src= 'https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js'>skript> hlava> <body>  <h3>Pomocou metódy .attr()h3> <button id='update'>Aktualizovať tlačidlo Mebutton> <div style='margin-top: 50px;'>  <button id='change'>Kliknite na tlačidlo Mebutton> div> <script>$('#change').on('kliknutie', funkcia () { $('#update').attr('disabled', 'disabled'); });  $('#change').on('dblclick', funkcia () { $('#update').removeAttr('disabled'); });  script> body> html> </pre>  </code>  <p dir='ltr'>  <b>  <strong>Výkon: </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>Metóda .attr() Príklad výstupu </p>  <p>  <br> </p>  <br>  <br>
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