在没有对话框提示的情况下使用 JavaScript 下载 .txt

Question

是否可以仅使用 JavaScript（无服务器端编程！）创建和下载 .txt 文件，并将其保存在本地驱动器上，而不显示浏览器“保存文件”对话框？

Answer 1

Rickard Staaf 's answer is outdated. To download a file in javascript locally without prompting a dialog box, be sure to enable it in your browser settings (chrome >> settings >> advanced >> downloads and turn off 'Ask where to save each file before downloading' .

Subsequently, you can write a simple text file like so using blob objects:

function save() {
  var content = ["your-content-here"];
  var bl = new Blob(content, {type: "text/plain"});
  var a = document.createElement("a");
  a.href = URL.createObjectURL(bl);
  a.download = "your-download-name-here.txt";
  a.hidden = true;
  document.body.appendChild(a);
  a.click();
}

Answer 2

不，没有浏览器插件，这将是一个很大的安全风险。