dtable-utils/lib/sort/sort-column/number.js

dtable common utils

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var sort = require('../../constants/sort.js');

/**
 * Sort number
 * @param {number} leftNumber
 * @param {number} rightNumber
 * @param {string} sortType e.g. 'up' | 'down'
 * @returns number
 */
var sortNumber = function sortNumber(leftNumber, rightNumber, sortType) {
  var emptyLeftNumber = !leftNumber && leftNumber !== 0;
  var emptyRightNumber = !rightNumber && rightNumber !== 0;
  if (emptyLeftNumber && emptyRightNumber) {
    return 0;
  }
  if (emptyLeftNumber) {
    return 1;
  }
  if (emptyRightNumber) {
    return -1;
  }
  if (leftNumber > rightNumber) {
    return sortType === sort.SORT_TYPE.UP ? 1 : -1;
  }
  if (leftNumber < rightNumber) {
    return sortType === sort.SORT_TYPE.UP ? -1 : 1;
  }
  return 0;
};

exports.sortNumber = sortNumber;