JavaScript常用工具方法封装（1）---------1. type 类型判断

isString (o) { //是否字符串
  return Object.prototype.toString.call(o).slice(8, -1) === 'String'
}
isNumber (o) { //是否数字
  return Object.prototype.toString.call(o).slice(8, -1) === 'Number'
}
isBoolean (o) { //是否boolean
  return Object.prototype.toString.call(o).slice(8, -1) === 'Boolean'
}
isFunction (o) { //是否函数
  return Object.prototype.toString.call(o).slice(8, -1) === 'Function'
}
isNull (o) { //是否为null
  return Object.prototype.toString.call(o).slice(8, -1) === 'Null'
}
isUndefined (o) { //是否undefined
  return Object.prototype.toString.call(o).slice(8, -1) === 'Undefined'
}
isObj (o) { //是否对象
  return Object.prototype.toString.call(o).slice(8, -1) === 'Object'
}
isArray (o) { //是否数组
  return Object.prototype.toString.call(o).slice(8, -1) === 'Array'
}
isDate (o) { //是否时间
  return Object.prototype.toString.call(o).slice(8, -1) === 'Date'
}
isRegExp (o) { //是否正则
  return Object.prototype.toString.call(o).slice(8, -1) === 'RegExp'
}
isError (o) { //是否错误对象
  return Object.prototype.toString.call(o).slice(8, -1) === 'Error'
}
isSymbol (o) { //是否Symbol函数
  return Object.prototype.toString.call(o).slice(8, -1) === 'Symbol'
}
isPromise (o) { //是否Promise对象
  return Object.prototype.toString.call(o).slice(8, -1) === 'Promise'
}
isSet (o) { //是否Set对象
  return Object.prototype.toString.call(o).slice(8, -1) === 'Set'
}
isFalse (o) {
  if (!o || o === 'null' || o === 'undefined' || o === 'false' || o === 'NaN') return true
    return false
}
isTrue (o) {
  return !this.isFalse(o)
}
isIos () {
  var u = navigator.userAgent;
  if (u.indexOf('Android') > -1 || u.indexOf('Linux') > -1) {//安卓手机
    // return "Android";
    return false
  } else if (u.indexOf('iPhone') > -1) {//苹果手机
    // return "iPhone";
    return true
  } else if (u.indexOf('iPad') > -1) {//iPad
    // return "iPad";
    return false
  } else if (u.indexOf('Windows Phone') > -1) {//winphone手机
    // return "Windows Phone";
    return false
  }else{
    return false
  }
}
isPC () { //是否为PC端
  var userAgentInfo = navigator.userAgent;
  var Agents = ["Android", "iPhone",
        "SymbianOS", "Windows Phone",
        "iPad", "iPod"];
  var flag = true;
  for (var v = 0; v < Agents.length; v++) {
    if (userAgentInfo.indexOf(Agents[v]) > 0) {
      flag = false;
      break;
    }
  }
  return flag;
}
browserType(){
  var userAgent = navigator.userAgent; //取得浏览器的userAgent字符串
  var isOpera = userAgent.indexOf("Opera") > -1; //判断是否Opera浏览器
  var isIE = userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1 && !isOpera; //判断是否IE浏览器
  var isIE11 = userAgent.indexOf('Trident') > -1 && userAgent.indexOf("rv:11.0") > -1;
  var isEdge = userAgent.indexOf("Edge") > -1 && !isIE; //判断是否IE的Edge浏览器 
  var isFF = userAgent.indexOf("Firefox") > -1; //判断是否Firefox浏览器
  var isSafari = userAgent.indexOf("Safari") > -1 && userAgent.indexOf("Chrome") == -1; //判断是否Safari浏览器
  var isChrome = userAgent.indexOf("Chrome") > -1 && userAgent.indexOf("Safari") > -1; //判断Chrome浏览器
  if (isIE) {
    var reIE = new RegExp("MSIE (\\d+\\.\\d+);");
    reIE.test(userAgent);
    var fIEVersion = parseFloat(RegExp["$1"]);
    if(fIEVersion == 7) return "IE7"
    else if(fIEVersion == 8) return "IE8";
    else if(fIEVersion == 9) return "IE9";
    else if(fIEVersion == 10) return "IE10";
    else return "IE7以下"//IE版本过低
  }
  if (isIE11) return 'IE11';
  if (isEdge) return "Edge";
  if (isFF) return "FF";
  if (isOpera) return "Opera";
  if (isSafari) return "Safari";
  if (isChrome) return "Chrome";
}
checkStr (str, type) {
  switch (type) {
    case 'phone':  //手机号码
      return /^1[3|4|5|6|7|8|9][0-9]{9}$/.test(str);
    case 'tel':   //座机
      return /^(0\d{2,3}-\d{7,8})(-\d{1,4})?$/.test(str);
    case 'card':  //身份证
      return /(^\d{15}$)|(^\d{18}$)|(^\d{17}(\d|X|x)$)/.test(str);
    case 'pwd':   //密码以字母开头，长度在6~18之间，只能包含字母、数字和下划线
      return /^[a-zA-Z]\w{5,17}$/.test(str)
    case 'postal': //邮政编码
      return /[1-9]\d{5}(?!\d)/.test(str);
    case 'QQ':   //QQ号
      return /^[1-9][0-9]{4,9}$/.test(str);
    case 'email':  //邮箱
      return /^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$/.test(str);
    case 'money':  //金额(小数点2位)
      return /^\d*(?:\.\d{0,2})?$/.test(str);
    case 'URL':   //网址
      return /(http|ftp|https):\/\/[\w\-_]+(\.[\w\-_]+)+([\w\-\.,@?^=%&:/~\+#]*[\w\-\@?^=%&/~\+#])?/.test(str)
    case 'IP':   //IP
      return /((?:(?:25[0-5]|2[0-4]\\d|[01]?\\d?\\d)\\.){3}(?:25[0-5]|2[0-4]\\d|[01]?\\d?\\d))/.test(str);
    case 'date':  //日期时间
      return /^(\d{4})\-(\d{2})\-(\d{2}) (\d{2})(?:\:\d{2}|:(\d{2}):(\d{2}))$/.test(str) || /^(\d{4})\-(\d{2})\-(\d{2})$/.test(str)
    case 'number': //数字
      return /^[0-9]$/.test(str);
    case 'english': //英文
      return /^[a-zA-Z]+$/.test(str);
    case 'chinese': //中文
      return /^[\u4E00-\u9FA5]+$/.test(str);
    case 'lower':  //小写
      return /^[a-z]+$/.test(str);
    case 'upper':  //大写
      return /^[A-Z]+$/.test(str);
    case 'HTML':  //HTML标记
      return /<("[^"]*"|'[^']*'|[^'">])*>/.test(str);
    default:
      return true;
  }
  // 严格的身份证校验
  isCardID(sId) {
    if (!/(^\d{15}$)|(^\d{17}(\d|X|x)$)/.test(sId)) {
      alert('你输入的身份证长度或格式错误')
      return false
    }
    //身份证城市
    var aCity={11:"北京",12:"天津",13:"河北",14:"山西",15:"内蒙古",21:"辽宁",22:"吉林",23:"黑龙江",31:"上海",32:"江苏",33:"浙江",34:"安徽",35:"福建",36:"江西",37:"山东",41:"河南",42:"湖北",43:"湖南",44:"广东",45:"广西",46:"海南",50:"重庆",51:"四川",52:"贵州",53:"云南",54:"西藏",61:"陕西",62:"甘肃",63:"青海",64:"宁夏",65:"新疆",71:"台湾",81:"香港",82:"澳门",91:"国外"};
    if(!aCity[parseInt(sId.substr(0,2))]) { 
      alert('你的身份证地区非法')
      return false
    }
    // 出生日期验证
    var sBirthday=(sId.substr(6,4)+"-"+Number(sId.substr(10,2))+"-"+Number(sId.substr(12,2))).replace(/-/g,"/"),
      d = new Date(sBirthday)
    if(sBirthday != (d.getFullYear()+"/"+ (d.getMonth()+1) + "/" + d.getDate())) {
      alert('身份证上的出生日期非法')
      return false
    }
    // 身份证号码校验
    var sum = 0,
      weights = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2],
      codes = "10X98765432"
    for (var i = 0; i < sId.length - 1; i++) {
      sum += sId[i] * weights[i];
    }
    var last = codes[sum % 11]; //计算出来的最后一位身份证号码
    if (sId[sId.length-1] != last) { 
      alert('你输入的身份证号非法')
      return false
    }
    return true
  }
}

2. Date