Untitled

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
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    <title>Document</title>
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    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
    <script>
        var array = ["Aceiutno",
            "Aguacate",
            "Coliflor",
            "Castaña",
            "Anchoa",
            "Jamon",
            "Jalapeño",
            "Patata"];

        $(document).ready(function () {
            var dataList = document.getElementById("list");
            array.forEach(element => {
                var option = document.createElement("option");
                var values = document.createAttribute("value");
                dataList.append(option);
                values.textContent = element;
                option.setAttributeNode(values);
            });
            $("#busqueda").on("keyup", function () {
                var value = $(this).val().toLowerCase();
                $("#list").filter(function () {
                    $(this).toggle($(this).text().toLowerCase().indexOf(value) > -1)
                });
            });
        });

    </script>
    <style>
        input{
            border-radius: 10px;
        }
    </style>
</head>

<body>
<div class="container">
 <div class="jumbotron ">
        <div class="container">
          <h1 class="display-4">Búsqueda de alimentos</h1>
        </div>
      </div><br>
      <input id="busqueda" list="list" type="text" placeholder="Introduce alimento">
      <button type="button" class="btn btn-danger">Enviar</button>
      <datalist id="list">

    </datalist>
    </div>


    <br>


</div>
</body>

</html>