js如何获取文件夹中的文件并随机显示

let requireModule = require.context(
     "文件路径位置",
        false,
        /\.jpg$/ //文件后缀名
      );
      let imagesNameArr = [];
      //获取文件夹下面的所有满足需求的文件
     for (let i = 0; i < requireModule.keys().length; i++) {
        imagesNameArr.push(requireModule.keys()[i].substr(2, requireModule.keys()[i].length));
      }
      //从上面的数组中随机筛选
      function getRandomArrayElements(arr, count) {
        let shuffled = arr.slice(0), i = arr.length, min = i - count, temp, index;
        while (i-- > min) {
          index = Math.floor((i + 1) * Math.random());
          temp = shuffled[index];
          shuffled[index] = shuffled[i];
          shuffled[i] = temp;
        }
        return shuffled.slice(min);
      }
       //获取到随机的文件并补全路径在页面上显示
      let imgLinkArray = getRandomArrayElements(imagesNameArr,4)
      for(let i=0;i<imgLinkArray.length;i++){
        let img = require("文件存放的路径" + imgLinkArray[i])
        this.phonePic.push(img)
      }