工具库 --- Validator

今天写的是一个正则验证类

单例模式

工具库地址：github.com/WeForStudy/…

npm地址：www.npmjs.com/package/slm…

单例模式

减少不必要的对象生存，减少资源的占用

由于只需要new一次，项目中其他项目共用一个对象

• 静态属性 instance --> private

• 静态方法getInstance --> public

• 其他方法，静态

• 源码

  包含（邮箱、手机、数字、http地址、纯英文、包含汉字等验证）

  
  export class ValidatorUtil {private static instance = null;/*** @description private the constructor in case other new it*/private constructor() {}/*** @description get the instance of Validator*/public static getInstance(): ValidatorUtil {if (!this.instance) {this.instance = new ValidatorUtil();}return this.instance;}/*** @description inside method will be use in every method* @param {String} str the string will be checked later* @returns {Boolean} the result*/private regTest(reg: RegExp, str: any): boolean {return reg.test(str);}/*** @description check string whether is a url or not* @param {String} str the string will be checked later* @returns {Boolean} the result*/private formatUrl(str: string): boolean {const reg = /^(https|http):\/\//g;return this.regTest(reg, str);}/*** @description check string whether is a email url or not* @param {String} str the string will be checked later* @returns {Boolean} the result*/private formatEmail(str: string): boolean {const reg = /^[a-zA-Z0-9_-]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/g;return this.regTest(reg, str);}/*** @description check string whether is a url or not* @param {String} str the string will be checked later* @returns {Boolean} the result*/private formatCnPhone(str: string): boolean {const reg = /^1(3|4|5|6|7|8|9)\d{9}$/g;return this.regTest(reg, str);}/*** @description check string whether is only a en char or not* @param {String} str the string will be checked later* @returns {Boolean} the result*/private onlyIncludeEn(str: string): boolean {const reg = /[^a-zA-Z]/g;return this.regTest(reg, str);}/*** @description check string whether is Number or not* @param {String} str the string will be checked later* @returns {Boolean} the result*/private includeNumber(str: any): boolean {return this.regTest(/[0-9]/g, str);}/*** @description check string whether is only include number or not* @param {String} str the string will be checked later* @returns {Boolean} the result*/private onlyNumber(str: any): boolean {return !this.regTest(/[^0-9]/g, str);}/*** @description check string whether include blank or not* @param {String} str the string will be checked later* @returns {Boolean} the result*/private includeBlank(str: any): boolean {return this.regTest(/\s+|\s+$/g, str);}/*** @description check string whether is special char or not* @param {String} str the string will be checked later* @returns {Boolean} the result*/private includeSpecialChar(str: string): boolean {const regEn = /[`~!@#$%^&*()_+<>?:"{},.\/;'[\]]/im,regCn = /[·！#￥（——）：；“”‘、，|《。》？、【】[\]]/im;if (this.includeBlank(str)) return true;if (this.regTest(regEn, str)) return true;return this.regTest(regCn, str);}/*** @description check string whether include blank or not* @param {String} str the string will be checked later* @returns {Boolean} the result*/private includeEnlishAndChineseChar(str: any): boolean {return this.regTest(/^[\u4e00-\u9fa5a-z]+$/gi, str);}/*** @description check string whether include special char or not* @param {String} str the string will be checked later* @returns {Boolean} the result*/private includeSpecCharAndExcludeSimpleChar(str: string): boolean {const regEn = /[`~!@#$%^&*()_+<>?:"{},.\/;'[\]]/im,regCn = /[·！#￥（——）|《》【】[\]]/im; // exclude , 、“”‘’ 。 ？；：if (this.regTest(regEn, str)) return true;return this.regTest(regCn, str);}}复制代码

• 使用案例

  const slmUtils = require('../build');
  const assert = require('assert');const { Validator } = slmUtils;
  describe('Util test', () => {describe('Validator check', () => {it('should be true when value include number (includeNumber)', () => {const objA = '123abc';assert.equal(Validator.getInstance().includeNumber(objA), true);});it('should be false when value not only include number (onlyNumber)', () => {const objA = '123abc';assert.equal(Validator.getInstance().onlyNumber(objA), false);});it('should be true when values format include http:// or https:// (formatUrl)', () => {const objA = 'https://';assert.equal(Validator.getInstance().formatUrl(objA), true);});it('should be true when values format normal Phone', () => {const objA = '13212312321';assert.equal(Validator.getInstance().formatCnPhone(objA), true);});it('should be true when values format normal Emial address', () => {const objA = 'trest@xxx.com';assert.equal(Validator.getInstance().formatEmail(objA), true);});it('should be false when values not only include EN Char', () => {const objA = 'asd12';assert.equal(Validator.getInstance().formatCnPhone(objA), false);});it('should be true when values include Blank', () => {const objA = 'asd 12';assert.equal(Validator.getInstance().includeBlank(objA), true);});it('should be true when values include Special char', () => {const objA = 'asd 12';assert.equal(Validator.getInstance().includeSpecialChar(objA), true);});it('should be true when values include Chinese char', () => {const objA = '你';assert.equal(Validator.getInstance().includeEnlishAndChineseChar(objA), true);});it('should be false when values include , char', () => {const objA = 'ab,d';assert.equal(Validator.getInstance().includeSpecCharAndExcludeSimpleChar(objA), true);});});
  });
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