text: /**
  * Copyright 2012-2021, Plotly, Inc.
  * All rights reserved.
  *
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  */
  
  
  'use strict';
  
  // works with our CSS cursor classes (see css/_cursor.scss)
  // to apply cursors to d3 single-element selections.
  // omit cursor to revert to the default.
  module.exports = function setCursor(el3, csr) {
      (el3.attr('class') || '').split(' ').forEach(function(cls) {
          if(cls.indexOf('cursor-') === 0) el3.classed(cls, false);
      });
  
      if(csr) el3.classed('cursor-' + csr, true);
  };
  