flo-utils/es/numpoints.js

some utils

/**
 * @name numPoints 数字千分符，支持小数
 * @param {*} num
 * @param {number} [precision], 不传则返回所以小数部分
 * @return {string}
 * @example
 *
 * numPoints(1001);
 * => '1,001.00'
 *
 * numPoints('sd');
 * => 'sd'
 */
import toNumber from 'lodash/toNumber';
import isNumber from 'lodash/isNumber';
import beNaN from './beNaN';
import { consoleWran } from './warn/util';

function numPoints(num, precision) {
  var toNum = toNumber(num);

  if (precision && !isNumber(precision)) {
    consoleWran('srcond param type is number');
    return num || '';
  }

  if (beNaN(toNum)) return num || '';
  var str = precision ? "".concat(toNum.toFixed(precision)) : "".concat(toNum);
  var decimal = str.split('.')[1] || ''; // 小数部分

  var inter = str.split('.')[0] || ''; // 整数部分

  var revInter = inter.replace(/(?=(?!\b)(\d{3})+$)/g, ',');

  if (precision) {
    var add0 = new Array(precision + 1).join(0).split('').join('');

    if (decimal.length < precision) {
      decimal += add0;
    }

    return "".concat(revInter, ".").concat(decimal);
  }

  if (precision === 0) {
    return revInter;
  }

  return decimal ? "".concat(revInter, ".").concat(decimal) : revInter;
}

export default numPoints;