详解javascript常用工具类的封装

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前言

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。

JavaScript 1. type 类型判断

-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|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}$/.test(str);
case 'pwd': //密码以字母开头,长度在6~18之间,只能包含字母、数字和下划线
return /^[a-zA-Z]\w{5,17}$/.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;
}
}

2. Date

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%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(time,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 ? 29 : 28
} 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/(243600));
}
/
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);
}

3. Array

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;
}
}

/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
}

4. String 字符串操作

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,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;
}

5. Number

}

/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;
}

6. Http

// 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)
})
})

}

7. DOM

}else if (type === '.') {
if (document.querySelecotorAll) return document.querySelectorAll(selector)
return document.getElementsByClassName(selector.substring(1))
}else{
return document'querySelectorAll' ? 'querySelectorAll':'getElementsByTagName'
}
}

/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];
}
}

8. Storage 储存操作

/-----------------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,-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()
}

}

9. Other 其它操作

获取网址参数*/ getURL(name){ var reg = new RegExp("(^|&)"+ name +"=([^&]*)(&|$)"); var r = 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(/\,"&");
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();
}
}

CSS 1. pc-reset PC样式初始化

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,h3 {
font-weight: inherit;
}

b,h3 {
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,table,caption,th,td,form,fieldset,legend,button,textarea,menu {
margin: 0;
padding: 0;
Box-sizing: border-Box;
}

2. Phone-reset

html {
line-height: 1.15;
/ 1 /
-ms-text-size-adjust: 100%;
/ 2 /
-webkit-text-size-adjust: 100%;
/ 2 /
}

body {
margin: 0;
}

article,menu {
margin: 0;
padding: 0;
Box-sizing: border-Box;
}

html,body {
/ 禁止中文/
-webkit-user-select: none;
user-select: none;
font: Oswald,'Open Sans',Helvetica,Arial,sans-serif
}

/ 禁止长按链接图片弹出菜单 /

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);
}

input[type="text"] {
-webkit-appearance: none;
}

3. 公共样式提取

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(0,0.65);
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

原文链接:https://www.f2er.com/js/33976.html

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