Function keysVsValues

keys-vs-values.js:41–56

(items)

  }

  function keysVsValues(items) {
    if (!Array.isArray(items) && typeof items === 'object') {
      return keysVsValues([items]);
    }

    console.assert(Array.isArray(items));
    return items.reduce(function (sizes, item) {
      var size = keysValues(item);
      sizes.keys += size.keys;
      sizes.values += size.values;
      return sizes;
    }, {
      keys: 0,
      values: 0
    });
  }

  root.keysVsValues = keysVsValues;
  console.log('try keysVsValues(<array of objects>);');