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TypeError: no se pudo ejecutar 'readAsDataURL' en 'FileReader': el parámetro 1 no es del tipo 'Blob'

He estado luchando con esto durante un par de días. No sé por qué sigue diciendo que mi archivo no es un tipo de blob. ¿Alguna ayuda?

HTML ABAJO

 <form style="padding-top:10px;" method="post" action="upload.php" enctype="multipart/form-data"> <input style="padding-bottom: 20px;" type="file" id="file" name="file" onchange="fileValidation(this);"> <div id="responsefromfileupload" value=""></div> </form>

JAVASCRIPT A CONTINUACIÓN

 function fileValidation(reader) { var file = $("input[type=file]").get(0).files[0]; var fileInput = document.getElementById('file'); var filePath = fileInput.value; // Allowing file type var allowedExtensions = /(\.jpg|\.jpeg|\.png|\.gif)$/i; if (!allowedExtensions.exec(filePath)) { $("#responsefromfileupload").replaceWith(`<div style="width: 50%;" class="alert alert-danger" role="alert"> This image file type is not accepted!</div>`); } if (allowedExtensions.exec(filePath)) { var reader = new FileReader(); reader.onload = function () { $("#previewImg").attr("src", reader.result); $("#previewImg").attr("margin-left", "25%"); } } reader.readAsDataURL(file); }
about 4 years ago · Juan Pablo Isaza
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 function fileValidation(event) { var file = event.target.files[0]; var fileInput = document.getElementById('file'); var filePath = fileInput.value; // Allowing file type var allowedExtensions = /(\.jpg|\.jpeg|\.png|\.gif)$/i; if (!allowedExtensions.exec(filePath)) { $("#responsefromfileupload").replaceWith(`<div style="width: 50%;" class="alert alert-danger" role="alert"> This image file type is not accepted!</div>`); } if (allowedExtensions.exec(filePath)) { var reader = new FileReader(); reader.onload = function () { $("#previewImg").attr("src", reader.result); $("#previewImg").attr("margin-left", "25%"); } } reader.readAsDataURL(file); }
 <form style="padding-top:10px;" method="post" action="upload.php" enctype="multipart/form-data"> <input style="padding-bottom: 20px;" type="file" id="file" name="file" onchange="fileValidation(event);"> <div id="responsefromfileupload" value=""></div> </form>

La plantilla que puede usar - elimine el espacio entre < y !--

< !-- comenzar fragmento: js ocultar: falso consola: verdadero babel: falso -->

< !-- idioma: lang-js -->

< !-- idioma: lang-html -->

< !-- idioma: lang-css -->

< !-- fragmento final -->

about 4 years ago · Juan Pablo Isaza Report
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