code: function ( url, onLoad, onProgress, onError, onMeshAlter, useAsync ) {
  		var resource = new THREE.LoaderSupport.ResourceDescriptor( url, 'OBJ' );
  		this._loadObj( resource, onLoad, onProgress, onError, onMeshAlter, useAsync );
  	}
docs: Use this convenient method to load a file at the given URL. By default the fileLoader uses an ArrayBuffer.
  
  @param {string} url A string containing the path/URL of the file to be loaded.
  @param {callback} onLoad A function to be called after loading is successfully completed. The function receives loaded Object3D as an argument.
  @param {callback} [onProgress] A function to be called while the loading is in progress. The argument will be the XMLHttpRequest instance, which contains total and Integer bytes.
  @param {callback} [onError] A function to be called if an error occurs during loading. The function receives the error as an argument.
  @param {callback} [onMeshAlter] A function to be called after a new mesh raw data becomes available for alteration.
  @param {boolean} [useAsync] If true, uses async loading with worker, if false loads data synchronously.