array-types-counter/dist/array-types-counter.esm.js

Simple helper to obtain the count of different array item's types.

import { isNumber } from 'number-helper-functions';
import { orderBy } from 'lodash-es';

/**
 * TypeCount class
 *
 * @class TypeCount
 */

var TypeCount =
/**
 * Creates an instance of TypeCount.
 * @param {string} type
 * @param {number} count
 * @memberof TypeCount
 */
function TypeCount(type, count) {
  this.type = type;
  this.count = count;
};
/**
 * Counts the array's item types
 *
 * @export
 * @param {any[]} array
 * @return {TypeCount[]}  The array item types ordered by count, descending
 */


function countArrayTypes(array) {
  var countObj = array.reduce(function (agg, item) {
    var type = typeof item;

    if (type === 'string' && isNumber(item)) {
      type = 'number';
    }

    if (agg[type] == null) {
      agg[type] = 1;
    } else {
      agg[type]++;
    }

    return agg;
  }, {});
  return orderBy(Object.entries(countObj).map(function (_ref) {
    var type = _ref[0],
        count = _ref[1];
    return new TypeCount(type, count);
  }), 'count', 'desc');
}

export { countArrayTypes };
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