js commonly used tools and methods

// setCookie()
// @About 设置cookie 默认一个月失效
function setCookie(name, value) {
    var Days = 30;
    var exp = new Date();
    exp.setTime(exp.getTime() + Days * 24 * 60 * 60 * 1000);
    document.cookie = name + "=" + escape(value) + ";expires=" + exp.toGMTString();
}


// getCookie()
// @About 获取cookie
function getCookie(name) {
    var arr = document.cookie.match(new RegExp("(^| )" + name + "=([^;]*)(;|$)"));
    if (arr != null) {
        return (arr[2]);
    } else {
        return "";
    }
}


// delCookie()
// @About 删除cookie
function delCookie(name) {
    var exp = new Date();
    exp.setTime(exp.getTime() - 1);
    var cval = getCookie(name);
    if (cval != null) {
      document.cookie = name + "=" + cval + ";expires=" + exp.toGMTString();
    }
}

function randomNumber(n1,n2){
    if(arguments.length===2){
        return Math.round(n1+Math.random()*(n2-n1));
    }
    
    else if(arguments.length===1){
        return Math.round(Math.random()*n1)
    }
    //
    //
    else{
        return Math.round(Math.random()*255)
    }  
}


randomNumber(5,10) // 返回5-10的随机整数，包括5，10
randomNumber(10)   // 返回0-10的随机整数，包括0，10
randomNumber()     // 返回0-255的随机整数，包括0，255

function getEndTime(endTime){
    var startDate=new Date();  //开始时间，当前时间
    var endDate=new Date(endTime); //结束时间，需传入时间参数
    var t=endDate.getTime()-startDate.getTime();  //时间差的毫秒数
    var d=0,h=0,m=0,s=0;
    if(t>=0){
      d=Math.floor(t/1000/3600/24);
      h=Math.floor(t/1000/60/60%24);
      m=Math.floor(t/1000/60%60);
      s=Math.floor(t/1000%60);
    } 
    return "剩余时间"+d+"天 "+h+"小时 "+m+" 分钟"+s+" 秒";
}


getEndTime('2018/8/8 8:0:0') // "剩余时间172天 12小时 10 分钟47 秒"

function filterParams(obj){
    let _newPar = {};
    for (let key in obj) {
        if ((obj[key] !== 0 && obj[key]) && obj[key].toString().replace(/(^\s*)|(\s*$)/g, '') !== '') {
            _newPar[key] = obj[key];
        }
    }
    return _newPar;
}


filterParams({a:0, b:1, c:"010", d:null, e:undefined,f:false}) 
// 当值等于0,null,undefined的时候，就会被过滤

function getUrlPrmt(url) {
    url = url ? url : window.location.href;    let _pa = url.substring(url.indexOf(&#39;?&#39;) + 1), _arrS = _pa.split(&#39;&&#39;), _rs = {};    for (let i = 0, _len = _arrS.length; i < _len; i++) {        let pos = _arrS[i].indexOf(&#39;=&#39;);        if (pos == -1) {            continue;
        }        let name = _arrS[i].substring(0, pos), value = window.decodeURIComponent(_arrS[i].substring(pos + 1));
        _rs[name] = value;
    }    return _rs;
}

function setUrlPrmt(obj) {    let _rs = [];    for (let p in obj) {        if (obj[p] != null && obj[p] != '') {
            _rs.push(p + '=' + obj[p])
        }
    }    return _rs.join('&');
}

setUrlPrmt({a:'0', b:1, c:"010", d:null, e:undefined,f:false}) // "a=0&b=1&c=010"

function getSuffix(file_name) {    var result = /[^\.]+$/.exec(file_name);    return result;
}

getSuffix('1234.png') // ["png", index: 5, input: "1234.png"]getSuffix('1231344.file'); // ["file", index: 8, input: "1231344.file"]

function supportCss3(style) {    var prefix = ['webkit', 'Moz', 'ms', 'o'],
        i,
        humpString = [],
        htmlStyle = document.documentElement.style,
        _toHumb = function(string) {            return string.replace(/-(\w)/g, function($0, $1) {                return $1.toUpperCase();
            });
        };    for (i in prefix)
        humpString.push(_toHumb(prefix[i] + '-' + style));
    humpString.push(_toHumb(style));    for (i in humpString)        if (humpString[i] in htmlStyle) return true;    return false;
}

function _getClass(o){    return Object.prototype.toString.call(o).slice(8,-1);
}

_getClass(new Date()); // Date_getClass('maolei');   // String

function bubbleSort(arr) {    var len = arr.length;    for (var i = 0; i < len; i++) {        for (var j = 0; j < len - 1 - i; j++) {            if (arr[j] > arr[j+1]) {        //相邻元素两两对比
                var temp = arr[j+1];        //元素交换
                arr[j+1] = arr[j];
                arr[j] = temp;
            }
        }
    }    return arr;
}var arr=[3,44,38,5,47,15,36,26,27,2,46,4,19,50,48];
bubbleSort(arr);//[2, 3, 4, 5, 15, 19, 26, 27, 36, 38, 44, 46, 47, 48, 50] ；

render('我是{{name}}，年龄{{age}}，性别{{sex}}',{
    name:'姓名',
    age:18,
    sex:'女'})

var render = function(tpl,data){    return tpl.replace(/\{\{(.+?)\}\}/g,function(m,m1){        return data[m1]
    })
}

render('我是{{name}}，年龄{{age}}，性别{{sex}}',{    name:'姓名',    age:18,sex:'女',
}) 
// "我是姓名，年龄18，性别女"