在前端项目我们常常需要操作字符串 时间格式 输入框限制输入精度和长度 ，下面对常用的方法封装
封装的好处:
1.精简代码 代码更加规范
2.多重复用，提高开发效率
3.如果出现相应的bug也能‘统一的’修改，而不需要到每个js或页面挨个修改
/**
* @description 常用验证 如是否字符串 是否函数 是否手机号 邮箱等等 是否pc 是否IOS系统
*/
var Kencheck = {
isString: function(o) { //是否字符串
return Object.prototype.toString.call(o).slice(8, -1) === 'String'
},
isNumber: function(o) { //是否数字
return Object.prototype.toString.call(o).slice(8, -1) === 'Number'
},
isBoolean: function(o) { //是否boolean
return Object.prototype.toString.call(o).slice(8, -1) === 'Boolean'
},
isFunction: function(o) { //是否函数
return Object.prototype.toString.call(o).slice(8, -1) === 'Function'
},
isNull: function(o) { //是否为null
return Object.prototype.toString.call(o).slice(8, -1) === 'Null'
},
isUndefined: function(o) { //是否undefined
return Object.prototype.toString.call(o).slice(8, -1) === 'Undefined'
},
isObj: function(o) { //是否对象
return Object.prototype.toString.call(o).slice(8, -1) === 'Object'
},
isArray: function(o) { //是否数组
return Object.prototype.toString.call(o).slice(8, -1) === 'Array'
},
isDate: function(o) { //是否时间
return Object.prototype.toString.call(o).slice(8, -1) === 'Date'
},
isRegExp: function(o) { //是否正则
return Object.prototype.toString.call(o).slice(8, -1) === 'RegExp'
},
isError: function(o) { //是否错误对象
return Object.prototype.toString.call(o).slice(8, -1) === 'Error'
},
isSymbol: function(o) { //是否Symbol函数
return Object.prototype.toString.call(o).slice(8, -1) === 'Symbol'
},
isPromise: function(o) { //是否Promise对象
return Object.prototype.toString.call(o).slice(8, -1) === 'Promise'
},
isSet: function(o) { //是否Set对象
return Object.prototype.toString.call(o).slice(8, -1) === 'Set'
},
isFalse: function(o) {
if (!o || o === 'null' || o === 'undefined' || o === 'false' || o === 'NaN') return true
return false
},
isTrue: function(o) {
return !this.isFalse(o)
},
isIos: function() {
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: function() { //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:function() {
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["$1"]);
if (fIEVersion == 7) return "IE7"
else if (fIEVersion == 8) return "IE8";
else if (fIEVersion == 9) return "IE9";
else if (fIEVersion == 10) return "IE10";
else return "IE7以下" //IE版本过低
}
if (isIE11) return 'IE11';
if (isEdge) return "Edge";
if (isFF) return "FF";
if (isOpera) return "Opera";
if (isSafari) return "Safari";
if (isChrome) return "Chrome";
},
checkStr: function(str, type) {
switch (type) {
case 'phone': //手机号码
return /^1[3|4|5|6|7|8|9][0-9]{9}$/.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]+$/.test(str);
case 'HTML': //HTML标记
return /<("[^"]*"|'[^']*'|[^'">])*>/.test(str);
default:
return true;
}
},
// 严格的身份证校验
isCardID: function(sId) {
if (!/(^\d{15}$)|(^\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
}
}
/**
* @description 操作时间
*/
var KenDate ={
/**
* 格式化时间
*
* @param {time} 时间
* @param {cFormat} 格式
* @return {String} 字符串
*
* @example formatTime('2018-1-29', '{y}/{m}/{d} {h}:{i}:{s}') // -> 2018/01/29 00:00:00
*/
formatTime:function(time, cFormat) {
if (arguments.length === 0) return null
if ((time + '').length === 10) {
time = +time * 1000
}
var format = cFormat || '{y}-{m}-{d} {h}:{i}:{s}', date
if (typeof time === 'object') {
date = time
} else {
date = new Date(time)
}
var formatObj = {
y: date.getFullYear(),
m: date.getMonth() + 1,
d: date.getDate(),
h: date.getHours(),
i: date.getMinutes(),
s: date.getSeconds(),
a: date.getDay()
}
var time_str = format.replace(/{(y|m|d|h|i|s|a)+}/g, (result, key) => {
var value = formatObj[key]
if (key === 'a') return ['一', '二', '三', '四', '五', '六', '日'][value - 1]
if (result.length > 0 && value < 10) {
value = '0' + value
}
return value || 0
})
return time_str
},
/**
* 返回指定长度的月份集合
*
* @param {time} 时间
* @param {len} 长度
* @param {direction} 方向： 1: 前几个月; 2: 后几个月; 3:前后几个月 默认 3
* @return {Array} 数组
*
* @example getMonths('2018-1-29', 6, 1) // -> ["2018-1", "2017-12", "2017-11", "2017-10", "2017-9", "2017-8", "2017-7"]
*/
getMonths:function(time, len, direction) {
var mm = new Date(time).getMonth(),
yy = new Date(time).getFullYear(),
direction = isNaN(direction) ? 3 : direction,
index = mm;
var cutMonth = function(index) {
if ( index <= len && index >= -len) {
return direction === 1 ? formatPre(index).concat(cutMonth(++index)):
direction === 2 ? formatNext(index).concat(cutMonth(++index)):formatCurr(index).concat(cutMonth(++index))
}
return []
}
var formatNext = function(i) {
var y = Math.floor(i/12),
m = i%12
return [yy+y + '-' + (m+1)]
}
var formatPre = function(i) {
var y = Math.ceil(i/12),
m = i%12
m = m===0 ? 12 : m
return [yy-y + '-' + (13 - m)]
}
var formatCurr = function(i) {
var y = Math.floor(i/12),
yNext = Math.ceil(i/12),
m = i%12,
mNext = m===0 ? 12 : m
return [yy-yNext + '-' + (13 - mNext),yy+y + '-' + (m+1)]
}
// 数组去重
var unique = function(arr) {
if ( Array.hasOwnProperty('from') ) {
return Array.from(new Set(arr));
}else{
var n = {},r=[];
for(var i = 0; i < arr.length; i++){
if (!n[arr[i]]){
n[arr[i]] = true;
r.push(arr[i]);
}
}
return r;
}
}
return direction !== 3 ? cutMonth(index) : unique(cutMonth(index).sort(function(t1, t2){
return new Date(t1).getTime() - new Date(t2).getTime()
}))
},
/**
* 返回指定长度的天数集合
*
* @param {time} 时间
* @param {len} 长度
* @param {direction} 方向： 1: 前几天; 2: 后几天; 3:前后几天 默认 3
* @return {Array} 数组
*
* @example date.getDays('2018-1-29', 6) // -> ["2018-1-26", "2018-1-27", "2018-1-28", "2018-1-29", "2018-1-30", "2018-1-31", "2018-2-1"]
*/
getDays:function(time, len, diretion) {
var tt = new Date(time)
var getDay = function(day) {
var t = new Date(time)
t.setDate(t.getDate() + day)
var m = t.getMonth()+1
return t.getFullYear()+'-'+m+'-'+t.getDate()
}
var arr = []
if (diretion === 1) {
for (var i = 1; i <= len; i++) {
arr.unshift(getDay(-i))
}
}else if(diretion === 2) {
for (var i = 1; i <= len; i++) {
arr.push(getDay(i))
}
}else {
for (var i = 1; i <= len; i++) {
arr.unshift(getDay(-i))
}
arr.push(tt.getFullYear()+'-'+(tt.getMonth()+1)+'-'+tt.getDate())
for (var i = 1; i <= len; i++) {
arr.push(getDay(i))
}
}
return diretion === 1 ? arr.concat([tt.getFullYear()+'-'+(tt.getMonth()+1)+'-'+tt.getDate()]) :
diretion === 2 ? [tt.getFullYear()+'-'+(tt.getMonth()+1)+'-'+tt.getDate()].concat(arr) : arr
},
/**
* @param {s} 秒数
* @return {String} 字符串
*
* @example formatHMS(3610) // -> 1h0m10s
*/
formatHMS:function(s) {
var str = ''
if (s > 3600) {
str = Math.floor(s/3600)+'h'+Math.floor(s%3600/60)+'m'+s%60+'s'
}else if(s > 60) {
str = Math.floor(s/60)+'m'+s%60+'s'
}else{
str = s%60+'s'
}
return str
},
/*获取某月有多少天*/
getMonthOfDay:function(time) {
var date = new Date(time)
var year = date.getFullYear()
var mouth = date.getMonth() + 1
var days
//当月份为二月时，根据闰年还是非闰年判断天数
if (mouth == 2) {
days = (year%4==0 && year%100==0 && year%400==0) || (year%4==0 && year%100!=0) ? 28 : 29
} else if (mouth == 1 || mouth == 3 || mouth == 5 || mouth == 7 || mouth == 8 || mouth == 10 || mouth == 12) {
//月份为：1,3,5,7,8,10,12 时，为大月.则天数为31；
days = 31
} else {
//其他月份，天数为：30.
days = 30
}
return days
},
/*获取某年有多少天*/
getYearOfDay:function(time) {
var firstDayYear = this.getFirstDayOfYear(time);
var lastDayYear = this.getLastDayOfYear(time);
var numSecond = (new Date(lastDayYear).getTime() - new Date(firstDayYear).getTime())/1000;
return Math.ceil(numSecond/(24*3600));
},
/*获取某年的第一天*/
getFirstDayOfYear:function(time) {
var year = new Date(time).getFullYear();
return year + "-01-01 00:00:00";
},
/*获取某年最后一天*/
getLastDayOfYear:function(time) {
var year = new Date(time).getFullYear();
var dateString = year + "-12-01 00:00:00";
var endDay = this.getMonthOfDay(dateString);
return year + "-12-" + endDay + " 23:59:59";
},
/*获取某个日期是当年中的第几天*/
getDayOfYear:function(time) {
var firstDayYear = this.getFirstDayOfYear(time);
var numSecond = (new Date(time).getTime() - new Date(firstDayYear).getTime())/1000;
return Math.ceil(numSecond/(24*3600));
},
/*获取某个日期在这一年的第几周*/
getDayOfYearWeek:function(time) {
var numdays = this.getDayOfYear(time);
return Math.ceil(numdays / 7);
}
}
/**
* @description 操作数组
*/
var KenArray ={
/*判断一个元素是否在数组中*/
contains:function(arr, val) {
return arr.indexOf(val) != -1 ? true : false;
},
/**
* @param {arr} 数组
* @param {fn} 回调函数
* @return {undefined}
*/
each:function(arr, fn) {
fn = fn || Function;
var a = [];
var args = Array.prototype.slice.call(arguments, 1);
for(var i = 0; i < arr.length; i++) {
var res = fn.apply(arr, [arr[i], i].concat(args));
if(res != null) a.push(res);
}
},
/**
* @param {arr} 数组
* @param {fn} 回调函数
* @param {thisObj} this指向
* @return {Array}
*/
map:function(arr, fn, thisObj) {
var scope = thisObj || window;
var a = [];
for(var i = 0, j = arr.length; i < j; ++i) {
var res = fn.call(scope, arr[i], i, this);
if(res != null) a.push(res);
}
return a;
},
/**
* @param {arr} 数组
* @param {type} 1：从小到大 2：从大到小 3：随机
* @return {Array}
*/
sort:function(arr, type = 1) {
return arr.sort( (a, b) => {
switch(type) {
case 1:
return a - b;
case 2:
return b - a;
case 3:
return Math.random() - 0.5;
default:
return arr;
}
})
},
/*去重*/
unique:function(arr) {
if ( Array.hasOwnProperty('from') ) {
return Array.from(new Set(arr));
}else{
var n = {},r=[];
for(var i = 0; i < arr.length; i++){
if (!n[arr[i]]){
n[arr[i]] = true;
r.push(arr[i]);
}
}
return r;
}
// 注：上面 else 里面的排重并不能区分 2 和 '2'，但能减少用indexOf带来的性能,暂时没找到替代的方法。。。
/* 正确排重
if ( Array.hasOwnProperty('from') ) {
return Array.from(new Set(arr))
}else{
var r = [], NaNBol = true
for(var i=0; i < arr.length; i++) {
if (arr[i] !== arr[i]) {
if (NaNBol && r.indexOf(arr[i]) === -1) {
r.push(arr[i])
NaNBol = false
}
}else{
if(r.indexOf(arr[i]) === -1) r.push(arr[i])
}
}
return r
}
*/
},
/*求两个集合的并集*/
union:function(a, b) {
var newArr = a.concat(b);
return this.unique(newArr);
},
/*求两个集合的交集*/
intersect:function(a, b) {
var _this = this;
a = this.unique(a);
return this.map(a, function(o) {
return _this.contains(b, o) ? o : null;
});
},
/*删除其中一个元素*/
remove:function(arr, ele) {
var index = arr.indexOf(ele);
if(index > -1) {
arr.splice(index, 1);
}
return arr;
},
/*将类数组转换为数组的方法*/
formArray:function(ary) {
var arr = [];
if(Array.isArray(ary)) {
arr = ary;
} else {
arr = Array.prototype.slice.call(ary);
};
return arr;
},
/*最大值*/
max:function(arr) {
return Math.max.apply(null, arr);
},
/*最小值*/
min:function(arr) {
return Math.min.apply(null, arr);
},
/*求和*/
sum:function(arr) {
return arr.reduce( (pre, cur) => {
return pre + cur
})
},
/*平均值*/
average:function(arr) {
return this.sum(arr)/arr.length
}
}
var KenString ={
/**
* 去除空格
* @param {str}
* @param {type}
* type: 1-所有空格 2-前后空格 3-前空格 4-后空格
* @return {String}
*/
trim:function (str, type) {
type = type || 1
switch (type) {
case 1:
return str.replace(/\s+/g, "");
case 2:
return str.replace(/(^\s*)|(\s*$)/g, "");
case 3:
return str.replace(/(^\s*)/g, "");
case 4:
return str.replace(/(\s*$)/g, "");
default:
return str;
}
},
/**
* @param {str}
* @param {type}
* type: 1:首字母大写 2：首页母小写 3：大小写转换 4：全部大写 5：全部小写
* @return {String}
*/
changeCase:function (str, type) {
type = type || 4
switch (type) {
case 1:
return str.replace(/\b\w+\b/g, function (word) {
return word.substring(0, 1).toUpperCase() + word.substring(1).toLowerCase();
});
case 2:
return str.replace(/\b\w+\b/g, function (word) {
return word.substring(0, 1).toLowerCase() + word.substring(1).toUpperCase();
});
case 3:
return str.split('').map( function(word){
if (/[a-z]/.test(word)) {
return word.toUpperCase();
}else{
return word.toLowerCase()
}
}).join('')
case 4:
return str.toUpperCase();
case 5:
return str.toLowerCase();
default:
return str;
}
},
/*
检测密码强度
*/
checkPwd:function (str) {
var Lv = 0;
if (str.length < 6) {
return Lv
}
if (/[0-9]/.test(str)) {
Lv++
}
if (/[a-z]/.test(str)) {
Lv++
}
if (/[A-Z]/.test(str)) {
Lv++
}
if (/[\.|-|_]/.test(str)) {
Lv++
}
return Lv;
},
/*过滤html代码(把<>转换)*/
filterTag:function (str) {
str = str.replace(/&/ig, "&");
str = str.replace(/</ig, "<");
str = str.replace(/>/ig, ">");
str = str.replace(" ", " ");
return str;
}
}
var KenNumber ={
/*随机数范围*/
random:function(min, max) {
if (arguments.length === 2) {
return Math.floor(min + Math.random() * ( (max+1) - min ))
}else{
return null;
}
},
/*将阿拉伯数字翻译成中文的大写数字*/
numberToChinese:function (num) {
var AA = new Array("零", "一", "二", "三", "四", "五", "六", "七", "八", "九", "十");
var BB = new Array("", "十", "百", "仟", "萬", "億", "点", "");
var a = ("" + num).replace(/(^0*)/g, "").split("."),
k = 0,
re = "";
for(var i = a[0].length - 1; i >= 0; i--) {
switch(k) {
case 0:
re = BB[7] + re;
break;
case 4:
if(!new RegExp("0{4}//d{" + (a[0].length - i - 1) + "}$")
.test(a[0]))
re = BB[4] + re;
break;
case 8:
re = BB[5] + re;
BB[7] = BB[5];
k = 0;
break;
}
if(k % 4 == 2 && a[0].charAt(i + 2) != 0 && a[0].charAt(i + 1) == 0)
re = AA[0] + re;
if(a[0].charAt(i) != 0)
re = AA[a[0].charAt(i)] + BB[k % 4] + re;
k++;
}
if(a.length > 1) // 加上小数部分(如果有小数部分)
{
re += BB[6];
for(var i = 0; i < a[1].length; i++)
re += AA[a[1].charAt(i)];
}
if(re == '一十')
re = "十";
if(re.match(/^一/) && re.length == 3)
re = re.replace("一", "");
return re;
},
/*将数字转换为大写金额*/
changeToChinese:function (Num) {
//判断如果传递进来的不是字符的话转换为字符
if(typeof Num == "number") {
Num = new String(Num);
};
Num = Num.replace(/,/g, "") //替换tomoney()中的“,”
Num = Num.replace(/ /g, "") //替换tomoney()中的空格
Num = Num.replace(/￥/g, "") //替换掉可能出现的￥字符
if(isNaN(Num)) { //验证输入的字符是否为数字
//alert("请检查小写金额是否正确");
return "";
};
//字符处理完毕后开始转换，采用前后两部分分别转换
var part = String(Num).split(".");
var newchar = "";
//小数点前进行转化
for(var i = part[0].length - 1; i >= 0; i--) {
if(part[0].length > 10) {
return "";
//若数量超过拾亿单位，提示
}
var tmpnewchar = ""
var perchar = part[0].charAt(i);
switch(perchar) {
case "0":
tmpnewchar = "零" + tmpnewchar;
break;
case "1":
tmpnewchar = "壹" + tmpnewchar;
break;
case "2":
tmpnewchar = "贰" + tmpnewchar;
break;
case "3":
tmpnewchar = "叁" + tmpnewchar;
break;
case "4":
tmpnewchar = "肆" + tmpnewchar;
break;
case "5":
tmpnewchar = "伍" + tmpnewchar;
break;
case "6":
tmpnewchar = "陆" + tmpnewchar;
break;
case "7":
tmpnewchar = "柒" + tmpnewchar;
break;
case "8":
tmpnewchar = "捌" + tmpnewchar;
break;
case "9":
tmpnewchar = "玖" + tmpnewchar;
break;
}
switch(part[0].length - i - 1) {
case 0:
tmpnewchar = tmpnewchar + "元";
break;
case 1:
if(perchar != 0) tmpnewchar = tmpnewchar + "拾";
break;
case 2:
if(perchar != 0) tmpnewchar = tmpnewchar + "佰";
break;
case 3:
if(perchar != 0) tmpnewchar = tmpnewchar + "仟";
break;
case 4:
tmpnewchar = tmpnewchar + "万";
break;
case 5:
if(perchar != 0) tmpnewchar = tmpnewchar + "拾";
break;
case 6:
if(perchar != 0) tmpnewchar = tmpnewchar + "佰";
break;
case 7:
if(perchar != 0) tmpnewchar = tmpnewchar + "仟";
break;
case 8:
tmpnewchar = tmpnewchar + "亿";
break;
case 9:
tmpnewchar = tmpnewchar + "拾";
break;
}
var newchar = tmpnewchar + newchar;
}
//小数点之后进行转化
if(Num.indexOf(".") != -1) {
if(part[1].length > 2) {
// alert("小数点之后只能保留两位,系统将自动截断");
part[1] = part[1].substr(0, 2)
}
for(i = 0; i < part[1].length; i++) {
tmpnewchar = ""
perchar = part[1].charAt(i)
switch(perchar) {
case "0":
tmpnewchar = "零" + tmpnewchar;
break;
case "1":
tmpnewchar = "壹" + tmpnewchar;
break;
case "2":
tmpnewchar = "贰" + tmpnewchar;
break;
case "3":
tmpnewchar = "叁" + tmpnewchar;
break;
case "4":
tmpnewchar = "肆" + tmpnewchar;
break;
case "5":
tmpnewchar = "伍" + tmpnewchar;
break;
case "6":
tmpnewchar = "陆" + tmpnewchar;
break;
case "7":
tmpnewchar = "柒" + tmpnewchar;
break;
case "8":
tmpnewchar = "捌" + tmpnewchar;
break;
case "9":
tmpnewchar = "玖" + tmpnewchar;
break;
}
if(i == 0) tmpnewchar = tmpnewchar + "角";
if(i == 1) tmpnewchar = tmpnewchar + "分";
newchar = newchar + tmpnewchar;
}
}
//替换所有无用汉字
while(newchar.search("零零") != -1)
newchar = newchar.replace("零零", "零");
newchar = newchar.replace("零亿", "亿");
newchar = newchar.replace("亿万", "亿");
newchar = newchar.replace("零万", "万");
newchar = newchar.replace("零元", "元");
newchar = newchar.replace("零角", "");
newchar = newchar.replace("零分", "");
if(newchar.charAt(newchar.length - 1) == "元") {
newchar = newchar + "整"
}
return newchar;
},
/** 给输入数字的输入框现在 小数点数和长度 是否为负数
* 20161230 cuis 小数点保留两位，总长度默认13，可以传入总长度
*
* @param obj
* 控件对象
* @param floatNum
* 小数点保留位数 1~6, 最多精确到小数点6位 0表示不能有小数
* @param maxLength
* 默认最大长度 默认长度13
* @param minus
* 是否允许为负数 true为允许为负数，false为不允许为负数
*/
floatNumberCheck :function(obj, floatNum, maxLength, minus) {
if (minus == undefined || minus == null || minus == '') {
minus = false;
}
if (maxLength == undefined || maxLength == null || maxLength == '') {
maxLength = 13;
}
if (floatNum == undefined || floatNum == null) {
floatNum = 2;
}
if (minus == true) {
obj.value = obj.value.replace(/[^\d.-]/g, ""); // 清除“数字”和“.” "-"以外的字符
// 仅仅只能第一个字符为负
if (obj.value.substr(0, 1) == '-') {
obj.value = '-' + obj.value.substr(1, maxLength).replace(/[^\d.]/g, "");
}
} else {
obj.value = obj.value.replace(/[^\d.]/g, ""); // 清除“数字”和“.” 以外的字符
}
if (obj.value != 0 && obj.value.indexOf(".") == -1 && obj.value.substr(0, 1) == 0) {
obj.value = obj.value.substr(1);
}
obj.value = obj.value.replace(/\.{2,}/g, "."); // 只保留第一个. 清除多余的 //
obj.value = obj.value.replace(".", "$#$").replace(/\./g, "").replace("$#$", ".");
// obj.value =
// obj.value.replace(/^(\-)*(\d+)\.(\d\d).*$/,'$1$2.$3');//只能输入两个小数
if (floatNum == 2) {
obj.value = obj.value.replace(/^(\-)*(\d+)\.(\d\d).*$/, '$1$2.$3'); // 只能输入两个小数
} else if (floatNum == 1) {
obj.value = obj.value.replace(/^(\-)*(\d+)\.(\d).*$/, '$1$2.$3'); //
} else if (floatNum == 3) {
obj.value = obj.value.replace(/^(\-)*(\d+)\.(\d\d\d).*$/, '$1$2.$3'); //
} else if (floatNum == 4) {
obj.value = obj.value.replace(/^(\-)*(\d+)\.(\d\d\d\d).*$/, '$1$2.$3'); //
} else if (floatNum == 5) {
obj.value = obj.value.replace(/^(\-)*(\d+)\.(\d\d\d\d\d).*$/, '$1$2.$3'); //
} else if (floatNum == 6) {
obj.value = obj.value.replace(/^(\-)*(\d+)\.(\d\d\d\d\d\d).*$/, '$1$2.$3'); //
} else if (floatNum == 0) {
obj.value = obj.value.replace(/\./g, ""); //
} else {
obj.value = obj.value.replace(/^(\-)*(\d+)\.(\d\d).*$/, '$1$2.$3'); // 只能输入两个小数
}
if (obj.value.length >= maxLength) {
obj.value = obj.value.substr(0, maxLength);
}
}
}
var KenDom ={
$:function(selector){
var type = selector.substring(0, 1);
if (type === '#') {
if (document.querySelecotor) return document.querySelector(selector)
return document.getElementById(selector.substring(1))
}else if (type === '.') {
if (document.querySelecotorAll) return document.querySelectorAll(selector)
return document.getElementsByClassName(selector.substring(1))
}else{
return document['querySelectorAll' ? 'querySelectorAll':'getElementsByTagName'](selector)
}
},
/*检测类名*/
hasClass:function(ele, name) {
return ele.className.match(new RegExp('(\\s|^)' + name + '(\\s|$)'));
},
/*添加类名*/
addClass:function (ele, name) {
if (!this.hasClass(ele, name)) ele.className += " " + name;
},
/*删除类名*/
removeClass:function (ele, name) {
if (this.hasClass(ele, name)) {
var reg = new RegExp('(\\s|^)' + name + '(\\s|$)');
ele.className = ele.className.replace(reg, '');
}
},
/*替换类名*/
replaceClass:function (ele, newName, oldName) {
this.removeClass(ele, oldName);
this.addClass(ele, newName);
},
/*获取兄弟节点 ele具有唯一性*/
siblings:function (ele) {
console.log(ele.parentNode)
var chid = ele.parentNode.children,eleMatch = [];
for(var i = 0, len = chid.length; i < len; i ++){
if(chid[i] != ele){
eleMatch.push(chid[i]);
}
}
return eleMatch;
},
/*获取行间样式属性*/
getByStyle:function (obj,name){
if(obj.currentStyle){
return obj.currentStyle[name];
}else{
return getComputedStyle(obj,false)[name];
}
},
/*DOM转字符串*/
domToStirng:function(htmlDOM) {
var div = document.createElement("div");
div.appendChild(htmlDOM);
return div.innerHTML
},
/*字符串转DOM*/
stringToDom:function(htmlString) {
var div = document.createElement("div");
div.innerHTML = htmlString;
return div.children[0];
},
/**
* 光标所在位置插入字符，并设置光标位置
*
* @param {dom} 输入框
* @param {val} 插入的值
* @param {posLen} 光标位置处在 插入的值的哪个位置
*/
setCursorPosition:function(dom, val, posLen) {
var cursorPosition = 0;
if (dom.selectionStart) {
cursorPosition = dom.selectionStart;
}
this.insertAtCursor(dom, val);
dom.focus();
console.log(posLen)
dom.setSelectionRange(dom.value.length, cursorPosition + (posLen || val.length));
},
/*光标所在位置插入字符*/
insertAtCursor:function(dom, val) {
if (document.selection) {
dom.focus();
sel = document.selection.createRange();
sel.text = val;
sel.select();
} else if (dom.selectionStart || dom.selectionStart == '0') {
let startPos = dom.selectionStart;
let endPos = dom.selectionEnd;
let restoreTop = dom.scrollTop;
dom.value = dom.value.substring(0, startPos) + val + dom.value.substring(endPos, dom.value.length);
if (restoreTop > 0) {
dom.scrollTop = restoreTop;
}
dom.focus();
dom.selectionStart = startPos + val.length;
dom.selectionEnd = startPos + val.length;
} else {
dom.value += val;
dom.focus();
}
}
}
/*图片加载*/
/**
* @param {Object} arr 图片src地址
* @param 数组单个对象属性 这个属性值是src地址 如果fieldName为空 则认为arr是纯数组
* @param {Object} callback 回调方法
*/
function imgLoadAll(arr,fieldName,callback){
var arrImg = [];
for (var i = 0; i < arr.length; i++) {
var img = new Image();
img.src = fieldName?arr[i][fieldName]:arr[i];
img.onload = function(){
arrImg.push(this);
if (arrImg.length == arr.length) {
callback && callback(arrImg);
}
}
}
}
/*音频加载*/
/**
* @param {Object} src 音频src地址
* @param {Object} callback 回调方法
*/
function loadAudio(src, callback) {
var audio = new Audio(src);
audio.onloadedmetadata = callback;
audio.src = src;
}
注：大部分的方法来源程序猿dd的博客。
本文来源于：宋文超super，专属平台有csdn、思否(SegmentFault)、 简书、 开源中国(oschina)，转载请注明出处。
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