JSFiddle - React, Tailwind, and code Playground
by Евгений
HTML
<form><input type="file" id="myfile" onchange="big_file_upload(this)" /></form>
<div id="filelist" style="height:200px"></div>
<script>
function big_file_upload(file) {
var fsize = $(file).get(0).files.item(0).size;
var resume = fsize > 307000 ? 'не пройдет' : 'пройдет';
$('#filelist').html(file.value + ' (' + fsize + ' b)<br />в чат ' + resume);
}
</script>