工具庫 --- Validator (JS正則)

阿賀呀發表於2019-03-22
JS

工具庫 --- Validator

今天寫的是一個正則驗證類

單例模式

工具庫地址：github.com/WeForStudy/…

npm地址：www.npmjs.com/package/slm…

單例模式

減少不必要的物件生存，減少資源的佔用

由於只需要new一次，專案中其他專案共用一個物件

  • 靜態屬性 instance --> private

  • 靜態方法getInstance --> public

  • 其他方法，靜態

  • 原始碼

    包含（郵箱、手機、數字、http地址、純英文、包含漢字等驗證）

    
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);
  }

}

複製程式碼

  • 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);
    });
  });
});
複製程式碼

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