<!-- Nuestro input que contendrá el texto a copiar -->
<input type="text" id="input" value="¡Hola vaquero!">
<!-- Nuestro botón que ejecutará la función de javascript -->
<button id="button">Copiar</button>
<!-- Mostraremos aquí notificaciones o el texto copiado -->
<div id="wrapper" class="hidden"></div>
function copiar_texto() {
// Seleccionar el input de texto y el wrapper
var input = document.getElementById("input"),
wrapper = document.getElementById('wrapper');
// Limpiar cualquiera que sea el valor anterior del wrapper
wrapper.innerHTML = '';
wrapper.classList = 'hidden';
if (input.value.length < 1) {
wrapper.innerHTML = 'Ingresa un valor válido para copiar.';
wrapper.classList = 'danger display';
return;
}
// Seleccionamos el input sin necesidad de hacer contacto
input.select();
input.setSelectionRange(0, 99999);
// Usamos el navigator para acceder al clipboard y escribir el valor del input en él
navigator.clipboard.writeText(input.value);
// Informamos que hemos copiado el texto
wrapper.innerHTML = '<b>Texto copiado:</b> ' + input.value;
wrapper.classList = 'display success';
}
document.getElementById("button").addEventListener("click", copiar_texto);
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