删除文件，删除文件JS的副本

发布于 2025-01-12 07:01:37 字数 519 浏览 3 评论 0原文

我有一个文件输入，我正在尝试将所选文件保存到所有所选文件的对象中，以便将来我可以提交它们。问题是，每当在文件输入中选择一个新文件时，对象中的其他文件都会被删除。我尝试复制文件，或进行深层复制，但它不起作用，或类似的东西：

var filesObj = {}
var i = 0;
var fileInput = document.getElementById('fileInput')
fileInput.addEventListener("change", function(ev){
    let file = fileInput.files[0];
    let blob = new Blob([file], {type: file.type});
    let fileCopy = new File([file], file.name, { type: file.type, lastModified: file.lastModified });
    filesObj[i] = fileCopy;
    i++
});

提前致谢

原文

I have a file input and I am trying to save the selected file into an object of all the selected files so in the future I can submit them.
The problem is that whenever a new file is chosen in the file input, the other files are deleted in the object.
I tried copying the file, or doing deep copy but it doesn't work,
or something like this:

var filesObj = {}
var i = 0;
var fileInput = document.getElementById('fileInput')
fileInput.addEventListener("change", function(ev){
    let file = fileInput.files[0];
    let blob = new Blob([file], {type: file.type});
    let fileCopy = new File([file], file.name, { type: file.type, lastModified: file.lastModified });
    filesObj[i] = fileCopy;
    i++
});

Thanks in advance

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