console中输出指定的文件

(function(console){
  console.save = function(data, filename){

  if(!data) {
      console.error('Console.save: 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.initMouseEvent('click', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null)
  a.dispatchEvent(e)
}
})(console)

调用

  console.save(getMenuData(), 'data')