项目中常用公共方法总结

由于项目需要，会经常抽离出一些公共方法，为此总结下来。

1.判断整数

export const isInteger = (obj) => Math.floor(obj) === obj;

2.时分秒转化为秒

export const timeEvent = (e) => {
  var time = e;
  var len = time.split(":");
  if (len.length == 3) {
    var hour = time.split(":")[0];
    var min = time.split(":")[1];
    var sec = time.split(":")[2];
    return Number(hour * 3600) + Number(min * 60) + Number(sec);
  }
  if (len.length == 2) {
    var min = time.split(":")[0];
    var sec = time.split(":")[1];
    return Number(min * 60) + Number(sec);
  }
  if (len.length == 1) {
    var sec = time.split(":")[0];
    return Number(sec);
  }
};

3.去除字符串中间的空格

export const trims = (str) => {
  return str.replace(/[ ]/g, ""); //
};

4.获取 ios/小程序/安卓端，路由传递过来端参数值（获取请求头参数）(h5 项目接触过)

export const getQueryString = (key) => {
  var after = window.location.search;

  //key存在先通过search取值如果取不到就通过hash来取
  after = after.substr(1) || window.location.hash.split("?")[1];

  if (after) {
    var reg = new RegExp("(^|&)" + key + "=([^&]*)(&|$)");
    var r = after.match(reg);
    if (r != null) {
      return decodeURIComponent(r[2]);
    } else {
      return null;
    }
  }
};

5.去除输入框内容带表情包的方法

export const isEmojiCharacter = (substring) => {
  for (var i = 0; i < substring.length; i++) {
    var hs = substring.charCodeAt(i);
    if (0xd800 <= hs && hs <= 0xdbff) {
      if (substring.length > 1) {
        var ls = substring.charCodeAt(i + 1);
        var uc = (hs - 0xd800) * 0x400 + (ls - 0xdc00) + 0x10000;
        if (0x1d000 <= uc && uc <= 0x1f77f) {
          return true;
        }
      }
    } else if (substring.length > 1) {
      var ls = substring.charCodeAt(i + 1);
      if (ls == 0x20e3) {
        return true;
      }
    } else {
      if (0x2100 <= hs && hs <= 0x27ff) {
        return true;
      } else if (0x2b05 <= hs && hs <= 0x2b07) {
        return true;
      } else if (0x2934 <= hs && hs <= 0x2935) {
        return true;
      } else if (0x3297 <= hs && hs <= 0x3299) {
        return true;
      } else if (
        hs == 0xa9 ||
        hs == 0xae ||
        hs == 0x303d ||
        hs == 0x3030 ||
        hs == 0x2b55 ||
        hs == 0x2b1c ||
        hs == 0x2b1b ||
        hs == 0x2b50
      ) {
        return true;
      }
    }
  }
};

6.验证手机号

export function verifyPhone(phone) {
  const phoneReg = /^1((3[\d])|(4[5,6,7,9])|(5[0-3,5-9])|(6[5-7])|(7[0-8])|(8[\d])|(9[1,8,9]))\d{8}$/;
  return phoneReg.test(phone);
}

7.验证 6-20 位，允许字母、数字的密码

export function verifyPassword(password) {
  // 6-20位，允许字母、数字
  const passwordReg = /^[0-9A-Za-z]{6,20}$/;
  return passwordReg.test(password);
}

8.验证二代身份证号(18 位数字),最后一位是校验位,可能为数字或字符 X

export function verifyIDCard(iDCard) {
  const iDCardReg = /^\d{6}(18|19|20)\d{2}(0\d|10|11|12)([0-2]\d|30|31)\d{3}(\d|X|x)$/;
  return iDCardReg.test(iDCard);
}

9.验证邮箱

export function verifyEmail(Email) {
  // eslint-disable-next-line
  const emailrule = /^([a-zA-Z]|[0-9])(\w|\-)+@[a-zA-Z0-9]+\.([a-zA-Z]{2,4})$/;
  return emailrule.test(Email);
}

10.验证上传图片类型

export function verifyImage(ext) {
  return ["png", "jpg", "gif", "jpeg"].indexOf(ext.toLowerCase()) !== -1;
}

11.时间格式处理

import dayjs from "dayjs";

export function ReplaceTime(time) {
  if (time) {
    return dayjs(time).format("YYYY/MM/DD HH:mm:ss");
  } else {
    return null;
  }
}

12.获取当前最早时间

import dayjs from "dayjs";

export function verityTodayTime(){
    const dateEnd = new Date();//获取当前时间
    const todayTime = dayjs(dateEnd).format('YYYY-MM-DD');//获取当前时间，如2019-11-29 00:00:00
    return todayTime;
  },

13.获取明天最早时间

import dayjs from "dayjs";
export function verityTomorrowTime() {
  const time = dateRange.verityTodayTime();
  const day = dayjs(time).add(1, "day");
  const tomorrowTime = dayjs(day).format("YYYY-MM-DD"); //2019-11-30 00:00:00
  return tomorrowTime;
}

14.按时间随机生成订单号

import dayjs from "dayjs";

export function ReplaceTime(time) {
  if (time) {
    return dayjs(time).format("YYYY/MM/DD HH:mm:ss");
  } else {
    return null;
  }
}



import dayjs from "dayjs";
  generateCoding: (num) => {
    let outTradeNo = "";  //订单号
    for (let i = 0; i < 4; i++) //4位随机数，用以加在时间戳后面。
    {
      outTradeNo += Math.floor(Math.random() * 10);
    }
    const newDate = ReplaceTime(new Date())
    const CodingDate = dateRange.verityCodingDate(newDate);
    outTradeNo = 'sd' + CodingDate + outTradeNo;  //时间戳，用来生成订单号。
    if (num) {
      outTradeNo = outTradeNo + num;
    }
    return outTradeNo;
  },

15.拼接 url 参数

export function splitUrl(url, options) {
  let urlNew = url;
  const paramsArray: string[] = [];

  Object.keys(options).forEach((key) =>
    paramsArray.push(`${key}=${options[key]}`)
  );
  if (Object.keys(options).length === 0) {
    return url;
  }
  if (/\?/.test(urlNew) === false) {
    urlNew = `${urlNew}?${paramsArray.join("&")}`;
  } else {
    urlNew += `&${paramsArray.join("&")}`;
  }
  return urlNew;
}