SGH / COMPONENTS

  function D3ScatterPlotUtils(){}
  
  // usage example deepExtend({}, objA, objB); => should work similar to $.extend(true, {}, objA, objB);

  D3ScatterPlotUtils.prototype.deepExtend = function (out) {

      var utils = this;
      var emptyOut = {};
  
  
      if (!out && arguments.length > 1 && Array.isArray(arguments[1])) {
          out = [];
      }

      out = out || {};
  
      for (var i = 1; i < arguments.length; i++) {

          var source = arguments[i];
          if (!source)

              continue;
  

          for (var key in source) {
              if (!source.hasOwnProperty(key)) {
                  continue;
              }
              var isArray = Array.isArray(out[key]);
              var isObject = utils.isObject(out[key]);
              var srcObj = utils.isObject(source[key]);
  
              if (isObject && !isArray && srcObj) {
                  utils.deepExtend(out[key], source[key]);
              } else {
                  out[key] = source[key];

              }
          }
      }
  
      return out;
  };
  

  D3ScatterPlotUtils.prototype.isObject = function(a) {
      return a !== null && typeof a === 'object';
  };
  D3ScatterPlotUtils.prototype.isNumber = function(a) {
      return !isNaN(a) && typeof a === 'number';
  };
  D3ScatterPlotUtils.prototype.isFunction = function(a) {
      return typeof a === 'function';
  };