web-utils-super/downloadFile.js

前端函数库

/**
 * @desc: 下载文件 excel word
 * @param {String} fileName 文件名
 * @param {String} fileType 文件类型 可选值：excel | word
 * @param {File | Blob} data 二进制流
 */
function downloadFile(fileName, fileType, data) {
  const aLink = document.createElement("a");
  let type = "";
  if (fileType === "excel") {
    type = "application/vnd.ms-excel";
  } else if (fileType === "word") {
    type = "application/msword";
  } else return
  const blob = new Blob([data], {
    type,
  });
  aLink.href = URL.createObjectURL(blob);
  aLink.download = fileName;
  aLink.click();
  document.body.appendChild(aLink);
}

module.exports = downloadFile;