jointjs/demo/elk/node_modules/underscore/amd/size.js

JavaScript diagramming library

define(['./keys', './_isArrayLike'], function (keys, _isArrayLike) {

  // Return the number of elements in a collection.
  function size(obj) {
    if (obj == null) return 0;
    return _isArrayLike(obj) ? obj.length : keys(obj).length;
  }

  return size;

});