multi file upload web component this component just let user select file and wait for you to get the value and handle it yourself and it's not handling any kind of upload or something sample: https://codepen.io/javadbat/pen/xxgmWNB
you can cahnge file input place holder text by set placeholder-title="select your special file" attribute in dom
you can reset input file value by dom.value = null or dom.resetValue()