前端开发
网络新概念，云计算、大数据、O2O、电商。。。。
网络新概念，云计算、大数据、O2O、电商。。。。
2018-02-08 08:10:12
因为工作中经常用到这些方法，所有便把这些方法进行了总结。
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'}
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'}
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'}
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 isEdge = userAgent.indexOf("Edge") > -1; //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["$1"]); if(fIEVersion == 7) return "IE7"
else if(fIEVersion == 8) return "IE8"; else if(fIEVersion == 9) return "IE9"; else if(fIEVersion == 10) return "IE10"; else if(fIEVersion == 11) return "IE11"; else return "IE7以下"//IE版本过低
} if (isFF) return "FF"; if (isOpera) return "Opera"; if (isEdge) return "Edge"; if (isSafari) return "Safari"; if (isChrome) return "Chrome";
}
checkStr (str, type) { switch (type) { case 'phone': //手机号码
return /^1[3|4|5|6|7|8][0-9]{9}$/.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]+$/.test(str); case 'HTML': //HTML标记
return /<("[^"]*"|'[^']*'|[^'">])*>/.test(str); default: return true;
}
// 严格的身份证校验，谢谢楼下兄弟提供更加详细的身份验证
isCardID(sId) { if (!/(^\d{15}$)|(^\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
}
}/**
* 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(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(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
return [yy+y + '-' + (m+1)]
} var formatPre = function(i) { var y = Math.ceil(i/12),
m = i
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,
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(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 (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 (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 && year0==0 && year%400==0) || (year%4==0 && year0!=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 (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 (time) { var year = new Date(time).getFullYear(); return year + "-01-01 00:00:00";
}/*获取某年最后一天*/getLastDayOfYear (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 (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 (time) { var numdays = this.getDayOfYear(time); return Math.ceil(numdays / 7);
}/*判断一个元素是否在数组中*/contains (arr, val) { return arr.indexOf(val) != -1 ? true : false;
}/**
* @param {arr} 数组
* @param {fn} 回调函数
* @return {undefined}
*/each (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 (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 (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 (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 (a, b) { var newArr = a.concat(b); return this.unique(newArr);
}/*求两个集合的交集*/intersect (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 (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 (ary) { var arr = []; if(Array.isArray(ary)) {
arr = ary;
} else {
arr = Array.prototype.slice.call(ary);
}; return arr;
}/*最大值*/max (arr) { return Math.max.apply(null, arr);
}/*最小值*/min (arr) { return Math.min.apply(null, arr);
}/*求和*/sum (arr) { return arr.reduce( (pre, cur) => { return pre + cur
})
}/*平均值*/average (arr) { return this.sum(arr)/arr.length
}/**
* 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 (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*$)/g, ""); default: return str;
}
}/**
* @param {str}
* @param {type}
* type: 1:首字母大写 2：首页母小写 3：大小写转换 4：全部大写 5：全部小写
* @return {String}
*/changeCase (str, type) {
type = type || 4
switch (type) { case 1: return str.replace(/\b\w+\b/g, function (word) { return word.substring(0, 1).toUpperCase() + word.substring(1).toLowerCase();
}); case 2: return str.replace(/\b\w+\b/g, function (word) { return word.substring(0, 1).toLowerCase() + word.substring(1).toUpperCase();
}); case 3: return str.split('').map( function(word){ if (/[a-z]/.test(word)) { return word.toUpperCase();
}else{ return word.toLowerCase()
}
}).join('') case 4: return str.toUpperCase(); case 5: return str.toLowerCase(); default: return str;
}
}/*
检测密码强度
*/checkPwd (str) {
var Lv = 0; if (str.length < 6) { return Lv
} if (/[0-9]/.test(str)) {
Lv++
} if (/[a-z]/.test(str)) {
Lv++
} if (/[A-Z]/.test(str)) {
Lv++
} if (/[\.|-|_]/.test(str)) {
Lv++
} return Lv;
}/*过滤html代码(把<>转换)*/filterTag (str) { str = str.replace(/&/ig, "&"); str = str.replace(/</ig, "<"); str = str.replace(/>/ig, ">"); str = str.replace(" ", " "); return str;
}/*随机数范围*/random (min, max) { if (arguments.length === 2) { return Math.floor(min + Math.random() * ( (max+1) - min ))
}else{ return null;
}
}/*将阿拉伯数字翻译成中文的大写数字*/numberToChinese (num) { var AA = new Array("零", "一", "二", "三", "四", "五", "六", "七", "八", "九", "十"); var BB = new Array("", "十", "百", "仟", "萬", "億", "点", ""); var a = ("" + num).replace(/(^0*)/g, "").split("."),
k = 0,
re = ""; for(var i = a[0].length - 1; i >= 0; i--) { switch(k) { case 0:
re = BB[7] + re; break; case 4:
if(!new RegExp("0{4}//d{" + (a[0].length - i - 1) + "}$")
.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 (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;
}/**
* @param {setting}
*/ajax(setting){ //设置参数的初始值
var opts={ method: (setting.method || "GET").toUpperCase(), //请求方式
url: setting.url || "", // 请求地址
async: setting.async || true, // 是否异步
dataType: setting.dataType || "json", // 解析方式
data: setting.data || "", // 参数
success: setting.success || function(){}, // 请求成功回调
error: setting.error || function(){} // 请求失败回调
} // 参数格式化
function params_format (obj) { var str = ''
for (var i in obj) {
str += i + '=' + obj[i] + '&'
} return str.split('').slice(0, -1).join('')
} // 创建ajax对象
var xhr=new XMLHttpRequest(); // 连接服务器open(方法GET/POST，请求地址， 异步传输)
if(opts.method == 'GET'){
xhr.open(opts.method, opts.url + "?" + params_format(opts.data), opts.async);
xhr.send();
}else{
xhr.open(opts.method, opts.url, opts.async);
xhr.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
xhr.send(opts.data);
}
/*
** 每当readyState改变时，就会触发onreadystatechange事件
** readyState属性存储有XMLHttpRequest的状态信息
** 0 ：请求未初始化
** 1 ：服务器连接已建立
** 2 ：请求已接受
** 3 : 请求处理中
** 4 ：请求已完成，且相应就绪
*/
xhr.onreadystatechange = function() { if (xhr.readyState === 4 && (xhr.status === 200 || xhr.status === 304)) { switch(opts.dataType){ case "json": var json = JSON.parse(xhr.responseText);
opts.success(json); break; case "xml":
opts.success(xhr.responseXML); break; default:
opts.success(xhr.responseText); break;
}
}
}
xhr.onerror = function(err) {
opts.error(err);
}
}/**
* @param {url}
* @param {setting}
* @return {Promise}
*/fetch(url, setting) { //设置参数的初始值
let opts={ method: (setting.method || 'GET').toUpperCase(), //请求方式
headers : setting.headers || {}, // 请求头设置
credentials : setting.credentials || true, // 设置cookie是否一起发送
body: setting.body || {}, mode : setting.mode || 'no-cors', // 可以设置 cors, no-cors, same-origin
redirect : setting.redirect || 'follow', // follow, error, manual
cache : setting.cache || 'default' // 设置 cache 模式 (default, reload, no-cache)
} let dataType = setting.dataType || "json", // 解析方式
data = setting.data || "" // 参数
// 参数格式化
function params_format (obj) { var str = ''
for (var i in obj) {
str += `${i}=${obj[i]}&`
} return str.split('').slice(0, -1).join('')
} if (opts.method === 'GET') {
url = url + (data?`?${params_format(data)}`:'')
}else{
setting.body = data || {}
} return new Promise( (resolve, reject) => {
fetch(url, opts).then( async res => { let data = dataType === 'text' ? await res.text() :
dataType === 'blob' ? await res.blob() : await res.json()
resolve(data)
}).catch( e => {
reject(e)
})
})
}$ (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 (ele, name) { return ele.className.match(new RegExp('(\\s|^)' + name + '(\\s|$)'));
}/*添加类名*/addClass (ele, name) { if (!this.hasClass(ele, name)) ele.className += " " + name;
}/*删除类名*/removeClass (ele, name) { if (this.hasClass(ele, name)) { var reg = new RegExp('(\\s|^)' + name + '(\\s|$)');
ele.className = ele.className.replace(reg, '');
}
}/*替换类名*/replaceClass (ele, newName, oldName) { this.removeClass(ele, oldName); this.addClass(ele, newName);
}/*获取兄弟节点*/siblings (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 (obj,name){ if(obj.currentStyle){ return obj.currentStyle[name];
}else{ return getComputedStyle(obj,false)[name];
}
}class StorageFn { constructor () { this.ls = window.localStorage; this.ss = window.sessionStorage;
} /*-----------------cookie---------------------*/
/*设置cookie*/
setCookie (name, value, day) { var setting = arguments[0]; if (Object.prototype.toString.call(setting).slice(8, -1) === 'Object'){ for (var i in setting) { var oDate = new Date();
oDate.setDate(oDate.getDate() + day);
document.cookie = i + '=' + setting[i] + ';expires=' + oDate;
}
}else{ var oDate = new Date();
oDate.setDate(oDate.getDate() + day);
document.cookie = name + '=' + value + ';expires=' + oDate;
}
} /*获取cookie*/
getCookie (name) { var arr = document.cookie.split('; '); for (var i = 0; i < arr.length; i++) { var arr2 = arr[i].split('='); if (arr2[0] == name) { return arr2[1];
}
} return '';
} /*删除cookie*/
removeCookie (name) { this.setCookie(name, 1, -1);
} /*-----------------localStorage---------------------*/
/*设置localStorage*/
setLocal(key, val) { var setting = arguments[0]; if (Object.prototype.toString.call(setting).slice(8, -1) === 'Object'){ for(var i in setting){ this.ls.setItem(i, JSON.stringify(setting[i]))
}
}else{ this.ls.setItem(key, JSON.stringify(val))
}
} /*获取localStorage*/
getLocal(key) { if (key) return JSON.parse(this.ls.getItem(key)) return null;
} /*移除localStorage*/
removeLocal(key) { this.ls.removeItem(key)
} /*移除所有localStorage*/
clearLocal() { this.ls.clear()
} /*-----------------sessionStorage---------------------*/
/*设置sessionStorage*/
setSession(key, val) { var setting = arguments[0]; if (Object.prototype.toString.call(setting).slice(8, -1) === 'Object'){ for(var i in setting){ this.ss.setItem(i, JSON.stringify(setting[i]))
}
}else{ this.ss.setItem(key, JSON.stringify(val))
}
} /*获取sessionStorage*/
getSession(key) { if (key) return JSON.parse(this.ss.getItem(key)) return null;
} /*移除sessionStorage*/
removeSession(key) { this.ss.removeItem(key)
} /*移除所有sessionStorage*/
clearSession() { this.ss.clear()
}
}/*获取网址参数*/getURL(name){ var reg = new RegExp("(^|&)"+ name +"=([^&]*)(&|$)"); var r = decodeURI(window.location.search).substr(1).match(reg); if(r!=null) return r[2]; return null;
}/*获取全部url参数,并转换成json对象*/getUrlAllParams (url) { var url = url ? url : window.location.href; var _pa = url.substring(url.indexOf('?') + 1),
_arrS = _pa.split('&'),
_rs = {}; for (var i = 0, _len = _arrS.length; i < _len; i++) { var pos = _arrS[i].indexOf('='); if (pos == -1) { continue;
} var name = _arrS[i].substring(0, pos),
value = window.decodeURIComponent(_arrS[i].substring(pos + 1));
_rs[name] = value;
} return _rs;
}/*删除url指定参数，返回url*/delParamsUrl(url, name){ var baseUrl = url.split('?')[0] + '?'; var query = url.split('?')[1]; if (query.indexOf(name)>-1) { var obj = {} var arr = query.split("&"); for (var i = 0; i < arr.length; i++) {
arr[i] = arr[i].split("=");
obj[arr[i][0]] = arr[i][1];
}; delete obj[name]; var url = baseUrl + JSON.stringify(obj).replace(/[\"\{\}]/g,"").replace(/\:/g,"=").replace(/\,/g,"&"); return url
}else{ return url;
}
}/*获取十六进制随机颜色*/getRandomColor () { return '#' + (function(h) { return new Array(7 - h.length).join("0") + h;
})((Math.random() * 0x1000000 << 0).toString(16));
}/*图片加载*/imgLoadAll(arr,callback){ var arrImg = [];
for (var i = 0; i < arr.length; i++) { var img = new Image();
img.src = arr[i];
img.onload = function(){
arrImg.push(this); if (arrImg.length == arr.length) {
callback && callback();
}
}
}
}/*音频加载*/loadAudio(src, callback) { var audio = new Audio(src);
audio.onloadedmetadata = callback;
audio.src = src;
}/*DOM转字符串*/domToStirng(htmlDOM){ var div= document.createElement("div");
div.appendChild(htmlDOM); return div.innerHTML
}/*字符串转DOM*/stringToDom(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 (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(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();
}
}/* normalize.css */html { line-height: 1.15; /* 1 */
-ms-text-size-adjust: 100%; /* 2 */
-webkit-text-size-adjust: 100%; /* 2 */}body { margin: 0;
}article,aside,footer,header,nav,section { display: block;
}h1 { font-size: 2em; margin: 0.67em 0;
}figcaption,figure,main { /* 1 */
display: block;
}figure { margin: 1em 40px;
}hr { box-sizing: content-box; /* 1 */
height: 0; /* 1 */
overflow: visible; /* 2 */}pre { font-family: monospace, monospace; /* 1 */
font-size: 1em; /* 2 */}a { background-color: transparent; /* 1 */
-webkit-text-decoration-skip: objects; /* 2 */}abbr[title] { border-bottom: none; /* 1 */
text-decoration: underline; /* 2 */
text-decoration: underline dotted; /* 2 */}b,strong { font-weight: inherit;
}b,strong { font-weight: bolder;
}code,kbd,samp { font-family: monospace, monospace; /* 1 */
font-size: 1em; /* 2 */}dfn { font-style: italic;
}mark { background-color: #ff0; color: #000;
}small { font-size: 80%;
}sub,sup { font-size: 75%; line-height: 0; position: relative; vertical-align: baseline;
}sub { bottom: -0.25em;
}sup { top: -0.5em;
}audio,video { display: inline-block;
}audio:not([controls]) { display: none; height: 0;
}img { border-style: none;
}svg:not(:root) { overflow: hidden;
}button,input,optgroup,select,textarea { font-family: sans-serif; /* 1 */
font-size: 100%; /* 1 */
line-height: 1.15; /* 1 */
margin: 0; /* 2 */}button,input { /* 1 */
overflow: visible;
}button,select { /* 1 */
text-transform: none;
}button,html [type="button"],/* 1 */[type="reset"],[type="submit"] { -webkit-appearance: button; /* 2 */}button::-moz-focus-inner,[type="button"]::-moz-focus-inner,[type="reset"]::-moz-focus-inner,[type="submit"]::-moz-focus-inner { border-style: none; padding: 0;
}button:-moz-focusring,[type="button"]:-moz-focusring,[type="reset"]:-moz-focusring,[type="submit"]:-moz-focusring { outline: 1px dotted ButtonText;
}fieldset { padding: 0.35em 0.75em 0.625em;
}legend { box-sizing: border-box; /* 1 */
color: inherit; /* 2 */
display: table; /* 1 */
max-width: 100%; /* 1 */
padding: 0; /* 3 */
white-space: normal; /* 1 */}progress { display: inline-block; /* 1 */
vertical-align: baseline; /* 2 */}textarea { overflow: auto;
}[type="checkbox"],[type="radio"] { box-sizing: border-box; /* 1 */
padding: 0; /* 2 */}[type="number"]::-webkit-inner-spin-button,[type="number"]::-webkit-outer-spin-button { height: auto;
}[type="search"] { -webkit-appearance: textfield; /* 1 */
outline-offset: -2px; /* 2 */}[type="search"]::-webkit-search-cancel-button,[type="search"]::-webkit-search-decoration { -webkit-appearance: none;
} ::-webkit-file-upload-button { -webkit-appearance: button; /* 1 */
font: inherit; /* 2 */}details,/* 1 */menu { display: block;
}summary { display: list-item;
}canvas { display: inline-block;
}template { display: none;
}[hidden] { display: none;
}/* reset */html,body,h1,h2,h3,h4,h5,h6,div,dl,dt,dd,ul,ol,li,p,blockquote,pre,hr,figure,table,caption,th,td,form,fieldset,legend,input,button,textarea,menu { margin: 0; padding: 0; box-sizing: border-box;
}/* normalize.css */html { line-height: 1.15; /* 1 */
-ms-text-size-adjust: 100%; /* 2 */
-webkit-text-size-adjust: 100%; /* 2 */}body { margin: 0;
}article,aside,footer,header,nav,section { display: block;
}h1 { font-size: 2em; margin: 0.67em 0;
}figcaption,figure,main { /* 1 */
display: block;
}figure { margin: 1em 40px;
}hr { box-sizing: content-box; /* 1 */
height: 0; /* 1 */
overflow: visible; /* 2 */}pre { font-family: monospace, monospace; /* 1 */
font-size: 1em; /* 2 */}a { background-color: transparent; /* 1 */
-webkit-text-decoration-skip: objects; /* 2 */}abbr[title] { border-bottom: none; /* 1 */
text-decoration: underline; /* 2 */
text-decoration: underline dotted; /* 2 */}b,strong { font-weight: inherit;
}b,strong { font-weight: bolder;
}code,kbd,samp { font-family: monospace, monospace; /* 1 */
font-size: 1em; /* 2 */}dfn { font-style: italic;
}mark { background-color: #ff0; color: #000;
}small { font-size: 80%;
}sub,sup { font-size: 75%; line-height: 0; position: relative; vertical-align: baseline;
}sub { bottom: -0.25em;
}sup { top: -0.5em;
}audio,video { display: inline-block;
}audio:not([controls]) { display: none; height: 0;
}img { border-style: none;
}svg:not(:root) { overflow: hidden;
}button,input,optgroup,select,textarea { font-family: sans-serif; /* 1 */
font-size: 100%; /* 1 */
line-height: 1.15; /* 1 */
margin: 0; /* 2 */}button,input { /* 1 */
overflow: visible;
}button,select { /* 1 */
text-transform: none;
}button,html [type="button"],/* 1 */[type="reset"],[type="submit"] { -webkit-appearance: button; /* 2 */}button::-moz-focus-inner,[type="button"]::-moz-focus-inner,[type="reset"]::-moz-focus-inner,[type="submit"]::-moz-focus-inner { border-style: none; padding: 0;
}button:-moz-focusring,[type="button"]:-moz-focusring,[type="reset"]:-moz-focusring,[type="submit"]:-moz-focusring { outline: 1px dotted ButtonText;
}fieldset { padding: 0.35em 0.75em 0.625em;
}legend { box-sizing: border-box; /* 1 */
color: inherit; /* 2 */
display: table; /* 1 */
max-width: 100%; /* 1 */
padding: 0; /* 3 */
white-space: normal; /* 1 */}progress { display: inline-block; /* 1 */
vertical-align: baseline; /* 2 */}textarea { overflow: auto;
}[type="checkbox"],[type="radio"] { box-sizing: border-box; /* 1 */
padding: 0; /* 2 */}[type="number"]::-webkit-inner-spin-button,[type="number"]::-webkit-outer-spin-button { height: auto;
}[type="search"] { -webkit-appearance: textfield; /* 1 */
outline-offset: -2px; /* 2 */}[type="search"]::-webkit-search-cancel-button,[type="search"]::-webkit-search-decoration { -webkit-appearance: none;
} ::-webkit-file-upload-button { -webkit-appearance: button; /* 1 */
font: inherit; /* 2 */}details,/* 1 */menu { display: block;
}summary { display: list-item;
}canvas { display: inline-block;
}template { display: none;
}[hidden] { display: none;
}/* reset */html,body,h1,h2,h3,h4,h5,h6,div,dl,dt,dd,ul,ol,li,p,blockquote,pre,hr,figure,table,caption,th,td,form,fieldset,legend,input,button,textarea,menu { margin: 0; padding: 0; box-sizing: border-box;
}html,body { /* 禁止选中文本 */
-webkit-user-select: none; user-select: none; font: Oswald, 'Open Sans', Helvetica, Arial, sans-serif
}/* 禁止长按链接与图片弹出菜单 */a,img { -webkit-touch-callout: none;
}/*ios android去除自带阴影的样式*/a,input { -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}input[type="text"] { -webkit-appearance: none;
}/* 禁止选中文本 */.usn{ -webkit-user-select:none; -moz-user-select:none; -ms-user-select:none; -o-user-select:none; user-select:none;
}/* 浮动 */.fl { float: left; }.fr { float: right; }.cf { zoom: 1; }.cf:after { content:"."; display:block; clear:both; visibility:hidden; height:0; overflow:hidden;
}/* 元素类型 */.db { display: block; }.dn { display: none; }.di { display: inline }.dib {display: inline-block;}.transparent { opacity: 0 }/*文字排版、颜色*/.f12 { font-size:12px }.f14 { font-size:14px }.f16 { font-size:16px }.f18 { font-size:18px }.f20 { font-size:20px }.fb { font-weight:bold }.fn { font-weight:normal }.t2 { text-indent:2em }.red,a.red { color:#cc0031 }.darkblue,a.darkblue { color:#039 }.gray,a.gray { color:#878787 }.lh150 { line-height:150% }.lh180 { line-height:180% }.lh200 { line-height:200% }.unl { text-decoration:underline; }.no_unl { text-decoration:none; }.tl { text-align: left; }.tc { text-align: center; }.tr { text-align: right; }.tj { text-align: justify; text-justify: inter-ideograph; }.wn { /* 强制不换行 */
word-wrap:normal; white-space:nowrap;
}.wb { /* 强制换行 */
white-space:normal; word-wrap:break-word; word-break:break-all;
}.wp { /* 保持空白序列*/
overflow:hidden;text-align:left;white-space:pre-wrap;word-wrap:break-word;word-break:break-all;
}.wes { /* 多出部分用省略号表示 , 用于一行 */
overflow:hidden; word-wrap:normal; white-space:nowrap; text-overflow:ellipsis;
}.wes-2 { /* 适用于webkit内核和移动端 */
display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; overflow: hidden;
}
.wes-3 { display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 3; overflow: hidden;
}.wes-4 { display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 4; overflow: hidden;
}/* 溢出样式 */.ofh { overflow: hidden; }.ofs {overflow: scroll; }.ofa {overflow: auto; }.ofv {overflow: visible; }/* 定位方式 */.ps {position: static; }.pr {position: relative;zoom:1; }.pa {position: absolute; }.pf {position: fixed; }/* 垂直对齐方式 */.vt {vertical-align: top; }.vm {vertical-align: middle; }.vb {vertical-align: bottom; }/* 鼠标样式 */.csd {cursor: default; }.csp {cursor: pointer; }.csh {cursor: help; }.csm {cursor: move; }/* flex布局 */.df-sb { display:flex; align-items: center; justify-content: space-between;
}.df-sa { display:flex; align-items: center; justify-content: space-around;
}/* 垂直居中 */.df-c { display: flex; align-items: center; justify-content: center;
}.tb-c { text-align:center; display:table-cell; vertical-align:middle;
}.ts-c { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
}.ts-mc { position: absolute; left: 0;right: 0; bottom: 0; top: 0; margin: auto;
}/* 辅助 */.mask-fixed-wrapper { width: 100%; height: 100%; position: fixed; left:0;top:0; background: rgba(0, 0, 0, 0.65); z-index: 999;
}.bg-cover { background-size: cover; background-repeat: no-repeat; background-position: center center;
}.bg-cover-all { background-size: 100% 100%; background-repeat: no-repeat; background-position: center center;
}以上都是经常用到的方法
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