fx-form-widget/es/packages/detailRender/tools.js

动态表单组件库

/**
 * 下载文件
 */
export var downloadFile = function downloadFile(link, filename) {
  if (!link) return;
  var xhr = new XMLHttpRequest();
  xhr.open('get', link, true);
  xhr.responseType = 'blob';
  var a = document.createElement('a');
  xhr.onload = function () {
    var url = URL.createObjectURL(xhr.response);
    var event = new MouseEvent('click');
    a.href = url;
    a.download = filename;
    a.dispatchEvent(event);
    URL.revokeObjectURL(url);
  };
  // document.removeChild(a);
  xhr.send();
};

/**
 * 判断值是否真的为空，不存在
 */
export var isNotNullValue = function isNotNullValue(value) {
  if (value === '' || value === undefined || value === null) {
    return false;
  } else {
    return true;
  }
};