text: /**
   * JS下载器
   * @author tengge / https://github.com/tengge1
   */
  function JsLoader() {
      this.assets = [];
  }
  
  JsLoader.prototype.load = function (url) {
      var data = {
          url,
          script: null
      };
      this.assets.push(data);
      return new Promise(resolve => {
          fetch(url).then(response => {
              if (response.ok) {
                  response.text().then(text => {
                      data.script = text;
                      resolve(data);
                  });
              } else {
                  console.warn(`JsLoader: ${url} loaded failed.`);
                  resolve(null);
              }
          }).catch(() => {
              console.warn(`JsLoader: ${url} loaded failed.`);
              resolve(null);
          });
      });
  };
  
  JsLoader.prototype.eval = function () {
      var eval2 = eval;
  
      var script = '';
  
      this.assets.forEach(n => {
          if (n.script) {
              script += n.script + '\n';
          }
      });
  
      if (script) {
          eval2.call(window, script);
      }
  };
  
  export default JsLoader;