封装将数据另存为json文件的方法

export function saveAsJSON(data, filename) {
    
    
  if (!data) {
    
    
    console.error("No data");
    return;
  }
  if (!filename) filename = "console.json";
  if (typeof data === "object") {
    
    
    data = JSON.stringify(data, undefined, 4);
  }
  var blob = new Blob([data], {
    
     type: "text/json" }),
    e = document.createEvent("MouseEvents"),
    a = document.createElement("a");
  a.download = filename;
  a.href = window.URL.createObjectURL(blob);
  a.dataset.downloadurl = ["text/json", a.download, a.href].join(":");
  e.initEvent("click", true, false);
  a.dispatchEvent(e);
}