UNPKG

ascor

Version:

一些常用的简单的js工具

35 lines (34 loc) 1.06 kB
import { isNumber, isEmpty, isString } from "../is/index"; //随机的字符库,26个字母大小写加0-9 let $char = []; for (let i = 0; i < 26; i++) { $char.push(String.fromCodePoint(65 + i)); //大写字母 $char.push(String.fromCodePoint(97 + i)); //小写字母 if (i <= 9) { $char.push(i); //0-9 } } /** * 生成随机字符串 * @param num 随机数位数,默认36位 例: 12 ,'12' * @param source 字符串资源,可选,如果传入字符串,则以此字符串作为资源,生成随机字符串 * @return string 返回字符串 */ export const getRanStr = (num = 36, source) => { if (!isNaN(num)) { num = Number.parseInt(num); } if (!isNumber(num)) { num = 36; } let str = ""; let strSource = $char; if (isString(source) && !isEmpty(source)) { strSource = source || $char; } //先随机36位字符串数组 for (let i = 0; i < num; i++) { str += strSource[Math.floor(Math.random() * strSource.length)]; } return str; };