t-comm/lib/list/list.js

专业、稳定、纯粹的工具库

'use strict';

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

var tslib_es6 = require('../tslib.es6-01322ba9.js');

/**
 * 打乱数组顺序
 *
 * @param {Array<any>} array - 数组
 * @returns {Array<any>} 乱序后的数组
 *
 * @example
 *
 * shuffle([1, 2, 3, 4, 5])
 *
 * // [3, 2, 1, 4, 5]
 *
 */
function shuffle(array) {
  var _a;
  var arr = tslib_es6.__spreadArray([], array, true);
  var m = arr.length;
  while (m > 1) {
    var index = Math.floor(Math.random() * m);
    m -= 1;
    _a = [arr[index], arr[m]], arr[m] = _a[0], arr[index] = _a[1];
  }
  return arr;
}
/**
 * 获取累积宽度
 * @param {Array<number>} cellWidthList - 宽度列表
 * @param {number} idx - 当前idx
 * @returns {number} 累计宽度
 *
 * @example
 *
 * getAccCellWidth([20, 10, 20, 10], 1)
 *
 * // 30
 */
function getAccCellWidth(cellWidthList, idx) {
  var res = 0;
  for (var i = 0; i <= Math.min(idx, cellWidthList.length - 1); i++) {
    res += cellWidthList[i];
  }
  return res;
}

exports.getAccCellWidth = getAccCellWidth;
exports.shuffle = shuffle;