[英]Remove selected file name for input multiple
<input type="file" id="file" multiple>
<ul id="list"></ul>
let file=document.getElementById("file");
let list=document.getElementById("list");
let fileList=[];
file.addEventListener("change",(e)=>{
Array.prototype.forEach.call(e.target.files,(file)=>{
fileList.push(file);
});
updateList();
});
function updateList(){
list.innerHTML="";
fileList.forEach((file)=>{
let li=document.createElement("li");
li.innerHTML="<span>"+file.name+"</span><a href='javascript:void(0)' class='remove'>remove</a>";
list.appendChild(li);
});
}
list.addEventListener("click",(e)=>{
let target=e.target;
if(target.className=="remove"){
let parent=target.parentNode;
let fileName=parent.children[0].innerText;
refreshList(fileName);
}
});
function refreshList(fileName){
fileList=fileList.filter((file)=>{
return file.name.indexOf(fileName)==-1;
});
console.log(fileList);
updateList();
}
我将使用递归函数执行此操作。 请参阅下面的解决方案:
function updateList () { var input = document.getElementById('file'); // Create list or array var list = []; for (var i = 0, len = input.files.length; i < len; ++i) { list.push(input.files.item(i)); } // Output file list outputList(list); } function outputList (list) { var output = document.getElementById('fileList'); while (output.hasChildNodes()) { output.removeChild(output.lastChild); } var nodes = document.createElement('ul'); for (var i = 0, len = list.length; i < len; ++i) (function(i) { var node = document.createElement('li'); var filename = document.createTextNode(list[i].name); var removeLink = document.createElement('a'); removeLink.href = 'javascript:void(0)'; removeLink.innerHTML = 'Remove'; removeLink.onclick = function () { // Remove item list.splice(i, 1); outputList(list); } node.appendChild(filename); node.appendChild(removeLink); nodes.appendChild(node); })(i); output.appendChild(nodes); }
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <input type="file" name="file" id="file" multiple onchange="javascript:updateList()" /> <br/>Selected files: <div id="fileList"></div>
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