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HTML

CSS

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JavaScript

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HTML

              
                <!DOCTYPE html>
<html>
    <head>
        <title>Cours jQuery</title>
        <meta charset="utf-8">
    </head>
    <body>
        <h1>Cours jQuery</h1>
        <label for="texte">Ecrivez dans le champ : </label>
        <input type="text" id="texte">
        <p>Code de la dernière touche pressée : <span></span></p>
    </body>
</html>
              
            
!

CSS

              
                
              
            
!

JS

              
                $(document).ready(function(){
    //Change la couleur de fond du champ en bleu dès qu'une touche est pressée
    //et affiche le code de la dernière touche pressée
    $("#texte").keydown(function(event){
        $(this).css("background-color", "lightBlue");
        $("span").text(event.which);
    });

    //Change la couleur de fond du champ en jaune dès qu'une touche est pressée
    $("#texte").keyup(function(){
        $(this).css("background-color", "yellow");
    });
});
              
            
!
999px

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