我要评论前言
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
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 == undefined || o == null || o == 'null' || o == 'undefined' || o == 0 || 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["$1"]);
if(fieversion == 7) return "ie7"
else if(fieversion == 8) return "ie8";
else if(fieversion == 9) return "ie9";
else if(fieversion == 10) return "ie10";
else if(fieversion == 11) return "ie11";
else return "ie7以下"//ie版本过低
}
if (isff) return "ff";
if (isopera) return "opera";
if (isedge) return "edge";
if (issafari) return "safari";
if (ischrome) return "chrome";
}
checkstr (str, type) {
switch (type) {
case 'phone': //手机号码
return /^1[3|4|5|7|8][0-9]{9}$/.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
/**
* 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%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, 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 ? 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/(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);
}
3. array
/*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;
}
}
/*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*$)/g, "");
default:
return str;
}
}
/**
* @param {str}
* @param {type}
* type: 1:首字母大写 2：首页母小写 3：大小写转换 4：全部大写 5：全部小写
* @return {string}
*/
changecase (str, type) {
type = type || 4
switch (type) {
case 1:
return str.replace(/\b\w+\b/g, function (word) {
return word.substring(0, 1).touppercase() + word.substring(1).tolowercase();
});
case 2:
return str.replace(/\b\w+\b/g, function (word) {
return word.substring(0, 1).tolowercase() + word.substring(1).touppercase();
});
case 3:
return str.split('').map( function(word){
if (/[a-z]/.test(word)) {
return word.touppercase();
}else{
return word.tolowercase()
}
}).join('')
case 4:
return str.touppercase();
case 5:
return str.tolowercase();
default:
return str;
}
}
/*
检测密码强度
*/
checkpwd (str) {
var lv = 0;
if (str.length < 6) {
return lv
}
if (/[0-9]/.test(str)) {
lv++
}
if (/[a-z]/.test(str)) {
lv++
}
if (/[a-z]/.test(str)) {
lv++
}
if (/[\.|-|_]/.test(str)) {
lv++
}
return lv;
}
/*过滤html代码(把<>转换)*/
filtertag (str) {
str = str.replace(/&/ig, "&");
str = str.replace(/</ig, "<");
str = str.replace(/>/ig, ">");
str = str.replace(" ", " ");
return str;
}
5. number
/*随机数范围*/
random (min, max) {
if (arguments.length === 2) {
return math.floor(min + math.random() * ( (max+1) - min ))
}else{
return null;
}
}
/*将阿拉伯数字翻译成中文的大写数字*/
numbertochinese (num) {
var aa = new array("零", "一", "二", "三", "四", "五", "六", "七", "八", "九", "十");
var bb = new array("", "十", "百", "仟", "萬", "億", "点", "");
var a = ("" + num).replace(/(^0*)/g, "").split("."),
k = 0,
re = "";
for(var i = a[0].length - 1; i >= 0; i--) {
switch(k) {
case 0:
re = bb[7] + re;
break;
case 4:
if(!new regexp("0{4}//d{" + (a[0].length - i - 1) + "}$")
.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;
}
6. http
/**
* @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)
})
})
}
7. dom
$ (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];
}
}
8. storage 储存操作
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()
}
}
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(/\,/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();
}
}
css 1. pc-reset pc样式初始化
/* 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;
}
2. phone-reset
/* 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;
}
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, 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
您可能感兴趣的文章:
如您对本文有疑问或者有任何想说的，请点击进行留言回复，万千网友为您解惑！
网友评论