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js+jquery常用知识点汇总_javascript技巧

WBOY
WBOY原创
2016-05-16 16:11:311217浏览

一、jquery源码中常见的知识点

  1.string,number类型转换的快捷方法

复制代码 代码如下:

// @param s为字符串,n为数字
function fn(obj){
    //转换为String类型
    var s = obj +"";
    //转换为number类型
    var n = +obj;
}

  分享一个面试例子:

//加会将其后面自动转换成字符串
"64"+4="644"
//减会将其自动转换成数字
"64"-4=60

  2.bool类型转换

  !!obj,将其强制转换为bool类型

复制代码 代码如下:

alert(!!0)  //结果为false
alert(!!"33dd")  //结果为true

  !obj,取相反的bool类型

复制代码 代码如下:

alert(!0)  //结果为true
alert(!"222333")  //结果为false

  3.=== 与 ==区别

  === 是严格相等,不会进行类型转换,而 == 是不严格相等,会进行类型转换。有些js的书中,建议开发人员永远不要用 == 或者 != 。

  但是jquery源码中,有用到“==”或者“!=”的情况 —— 判断 undefined 和 null 的时候。

复制代码 代码如下:

//这里的判断,将obj是null,obj是undefined都排除在外了
if(obj != null){
}

  4.检测obj是否为window对象

复制代码 代码如下:

//null == window.null为true
function isWindow(obj){
    return obj != null && obj == window.obj;
}

  5.|| 与 && 用法技巧

复制代码 代码如下:

//例 var aa=5; name = aa || {} ; alert(name) 则name为55
this.name = name || {} //如果name值存在,则值为name,反之为{}
//例 var aa=5; name = aa && {} ; alert(name) 则name为{},因为aa为5,不为0则为真
this.name = bool && [] //如果bool为true,则值为[],反之则为bool

  经典实例:

复制代码 代码如下:

( window.foo || ( window.foo = "bar" ) );
                alert(window.foo);  //弹出  bar
//  为什么最后的结果是bar呢,其实可以看成是   undefined || bar  出来的结果肯定是bar

  6.setTimeout(fn,0)与setTimeout(fn)区别

  setTimeout(fn,0)与setTimeout(fn)都是延迟执行,但是setTimeout(fn)比setTimeout(fn,0)延迟时间还要长,例

复制代码 代码如下:

        function fn(){
            var data = new Date();
            for(var i=0;i                 if(i==1000){
                    console.log("fn="+data.getTime());
                }
            }
        }
        function fn1(){
            var data = new Date();
            for(var i=0;i                 if(i==1000){
                    console.log("fn1="+data.getTime());
                }
            }
        }
        setTimeout(fn,0),
        setTimeout(fn1);

  结果:

  7.判断是否为数值

复制代码 代码如下:

function isNumeric(obj){
return !isNaN(parseFloat(obj)) && isFinite(obj);
}

  8.判断是否为空对象

复制代码 代码如下:

function isEmptyObject(){
    var name;
    //遍历不是空对象返回
    for (name in obj) {
        return false;
    }
    return true;
}

  9.检测对象类型

  检测obj对象类型,返回类型,通过Object.prototype.toString()来判断类型,但是ie低版本兼容性有问题,因此采用{}.toString来监测,返回为[object Array],[object Object],[object Function]

复制代码 代码如下:

// 类型判断
function isType(type){
    return function(o){
        return Object.prototype.toString.call(o) === '[object ' + type + ']';
    }
}
var isString = isType(“String”);
var isObject = isType("Object");
var isArray = isType("Array");
isString("I'm Barret Lee.");
isArray([1,2,3]);
isObject({});

  10.jquery里的去除空格trim妙用

复制代码 代码如下:

//相当于if (String.prototype.trim && “uFEFF\xA0″.trim() !== “”)高级的浏览器已经支持原生的String的trim方法,但是pFan还为了避免它没法解析全角空白,所以加多了一个判断:”uFEFF\xA0″.trim() !== “”   
vart core_version = "1.0",core_trim = core_version.trim;           
function trim(){
    core_trim && !core_trim.call("\uFEFF\xA0") ?
                    function (text) {
                        return text == null ?
                            "" :
                            core_trim.call(text); //这里按我的理解应该为" ".trim.call(text),有点不明白转换为"1.1.0".trim.call(text)
                    } :
        
                    // 高级的浏览器已经支持原生的String的trim方法,如果浏览器不支持则采用
                    function (text) {
                        var  whitespace = "[\\x20\\t\\r\\n\\f]",
                         rtrim = new RegExp("^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g");
                        return text == null ?
                            "" :
                            (text + "").replace(rtrim, "");
                    },
                //nodeName函数是获取dom节点的节点名字或者判断其名字跟传入参数是否匹配   
                nodeName: function(elem,name){
                     //IE下,DOM节点的nodeName是大写的,例如DIV
                     return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
                }
}

  11.jquery中检测数组或者类数组中是否含存在传入的值

复制代码 代码如下:

/**
    检查数组中是否存在传入的值,如果存在就返回值所在的位置,如果不存在就返回-1。
    *elem 规定需检索的值。
    *arr 数组
    *i 可选的整数参数。规定在数组中开始检索的位置。它的合法取值是 0 到 arr.length - 1。如省略该参数,则将从数组首元素开始检索。
    */
function inArray(elem, arr, i){
    var len;
    if (arr) {
        //如果浏览器支持Array拥有indexOf方法
        if ([].indexOf) {
            return [].indexOf.call(arr, elem, i);
        }
        len = arr.length;
         //当i为负数的时候,从数组后边len+i的位置开始索引
         //理解这个分成两个部分i = i ? (i         i = i ? i         for (; i             // 双重检测防止类似这样的数组 ar = [];ar[1]=1;ar[0] = undefined; 0 in ar =false;a[0]===undefined;
            // 0 in arr  => arr[0]是否存在  'nme' in arr => arr['nme']是否存在
            if (i in arr && arr[i] === elem) {
                return i;
            }
        }
    }
    return -1;
}

二、javascript中原型链常见的知识点

  1.hasOwnProperty()方法

   使用hasOwnProperty()方法可以检测一个属性是存在与实例,还是存在于原型中。这个方法从Object继承,只在给定属性存在于对象实例中时,才会返回true。

复制代码 代码如下:

    function Person(){
            this.age=25;
            this.job="web";
    }
    Person.prototype={
        name:'pingfan',
        sayName:function(){
                        alert(this.name);
                }
    }
    var person1=new Person();
    //来自构造函数,检测属性,也返回true
    alert(person1.hasOwnProperty("age"));
    //来自原型属性,返回false
    alert(person1.hasOwnProperty("name"));
    person1.name='ping';
    //来自实例属性,返回true
    alert(person1.hasOwnProperty("name"));

  2.通过instanceOf保证只实例一次

复制代码 代码如下:

 function shiCha(opt){
    //只实例一次
    if( !(this instanceof shiCha)){
        return new shiCha(opt);
    }               
}
var shicha = shiCha();

  3.javascript中Array.prototype.slice.call(arguments)  

  我们通常看到Array.prototype.slice.call(arguments,1)或者Array.prototype.slice.call(arguments),都有点摸不着头脑,其实我们就是借助Array.prototype中slice()将arguments变成一个数组,并且使用该数组工作更方便,第二个参数是从索引值,开始将其变成数组,例Array.prototype.call("22223",2)和Array.prototype.call([1,2,3,4],2),从字符串第二个开始。

复制代码 代码如下:

function sliArray(array){
                        //输出为从索引1到索引3
            return Array.prototype.slice.call(array,1,3);
}
alert(sliArray([1,2,3,4,5,6]))    //结果为2,3

  4. 利用空对象F,实现对象继承,效率最高

复制代码 代码如下:

//利用空对象做媒介,进行继承效果最佳
function inhert(C,P){
        var F=function(){};
        F.protototype = P.prototype;
        C.prototype = new F();
        C.prototype.constructor = C;
}

三、javascript中常用方法集
  1. 常见的数组操作方法

  数组去重:

复制代码 代码如下:

//数组去重原型
Array.prototype.unqie = function(){
  var arr = this, len=this.length, obj={}, newArr=[];           
          while(len--){
                   if(obj[ arr[len] ] !== arr[len]){
                        obj[arr[len]] = arr[len];   newArr.push( arr[len]);
                  } 
          }
return newArr.reverse();
}

  取数组中最大值:

复制代码 代码如下:

Array.prototype.arrMax=function(){
                var arr=this, len=this.length,max=arr[0];
                for(var i=1;i                         if(max                                 max=arr[i];
                        }
                }
        return max;
}
//数组中通过sort取最大值
  Array.prototype.arrMax=function(){
    var arr=this;
    arr.sort(function(a,b){
      return a-b;
    })
    return arr[arr.length-1];
  }
//利用Math.max取数组最大值
Array.prototype.arrMax =function(){
    var array = this;
    return Math.max.apply(null, array);
}
alert([1,2,3,4,5,6,9,8,7,9].arrMax());

  取数组中最小值:

复制代码 代码如下:

//数组中最的小值
Array.prototype.arrMin=function(){
                var arr=this, len=this.length,min=arr[0];
                for(var i=1;i                         if(min>arr[i]){
                                min=arr[i];
                        }
                }
        return min;
}
//数组中通过sort取最的小值
Array.prototype.arrSortMin=function(){
    var arr=this;
    arr.sort(function(a,b){
      return a-b;
    })
    return arr[0];
}
//利用Math.max取数组最大值
Array.prototype.arrSortMin =function(){
    var array = this;
    return Math.min.apply(null, array);
}
alert([1,2,3,4,5,6,9,8,7,9].arrSortMin());

  复制数组:

复制代码 代码如下:

Array.prototype.copy =
  function() {
    return [].concat(this);
};

  去除数组中只指定元素,只能去除一个,如果想多个,之前先用unique处理:

复制代码 代码如下:

Array.prototype.remove = function(value){
    for(var i=0,len=this.length;i     {
        if(this[i]==value){
            this.splice(i, 1);
            break;
        }
    }
   
    return this;
}

  2.操作document.loaction的方法集(这里借用了园友总结的相关方法)

复制代码 代码如下:

pFan.url = { //#URL
    //参数:变量名,url为空则表从当前页面的url中取
    getQuery: function (name, url) {
        var u = arguments[1] || window.location.search
            , reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)")
            , r = u.substr(u.indexOf("?") + 1).match(reg)
        ;
        return r != null ? r[2] : "";
    }
    , getHash: function (name, url) { //# 获取 hash值
        var u = arguments[1] || location.hash;
        var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");
        var r = u.substr(u.indexOf("#") + 1).match(reg);
        if (r != null) {
            return r[2];
        }
        return "";
    }
    , parse: function (url) { //# 解析URL
        var a = document.createElement('a');
        url = url || document.location.href;
        a.href = url;
        return {
            source: url
            , protocol: a.protocol.replace(':', '')
            , host: a.hostname
            , port: a.port
            , query: a.search
            , file: (a.pathname.match(/([^\/?#]+)$/i) || [, ''])[1]
            , hash: a.hash.replace('#', '')
            , path: a.pathname.replace(/^([^\/])/, '/$1')
            , relative: (a.href.match(/tps?:\/\/[^\/]+(.+)/) || [, ''])[1]
            , segments: a.pathname.replace(/^\//, '').split('/')
        };
    }
};

  3.常用的正则表达式

复制代码 代码如下:

pFan.regExp = {  //# 字符串匹配
    //是否为 数字!整数,浮点数
    isNum: function (num) { //# 是否为数组
        return !isNaN(num);
    }
    , isEmail: function (mail) {//# 是否为 邮箱
        return /^([a-z0-9]+[_\-\.]?)*[a-z0-9]+@([a-z0-9]+[_\-\.]?)*[a-z0-9]+\.[a-z]{2,5}$/i.test(mail);
    }
    , isIdCard: function (card) { //# 是否为 身份证
        return /^(\d{14}|\d{17})(\d|[xX])$/.test(card);
    }
    , isMobile: function (mobile) { //# 是否为 手机
        return /^0*1\d{10}$/.test(mobile);
    }
    , isQQ: function (qq) { //# 是否为 QQ
        return /^[1-9]\d{4,10}$/.test(qq);
    }
    , isTel: function (tel) { //# 是否为 电话
        return /^\d{3,4}-\d{7,8}(-\d{1,6})?$/.text(tel);
    }
    , isUrl: function (url) { //# 是否为 URL
        return /https?:\/\/[a-z0-9\.\-]{1,255}\.[0-9a-z\-]{1,255}/i.test(url);
    }
    , isColor: function (color) { //# 是否为 16进制颜色
        return /#([\da-f]{3}){1,2}$/i.test(color);
    }
    //@id : 身份证 ,
    // @now : 当前时间 如:new Date('2013/12/12') , '2013/12/12'
    // @age : 允许的年龄
    , isAdult: function (id, allowAge, now) { //# 是否年龄是否成年
        var age = 0 // 用户 年月日
            , nowDate = 0  //当前年月日
        ;
        allowAge = parseFloat(allowAge) || 18;
        now = typeof now == 'string' ? new Date(now) : (now || new Date());

        if (!this.isIdCard(id)) {
            return false;
        }
        //15位身份证
        if (15 == id.length) {
            age = '19' + id.slice(6, 6);
        } else {
            age = id.slice(6, 14);
        }
        // 类型转换 整型
        age = ~~age;
        nowDate = ~~(Tydic.date.format('YYYYMMDD', now));
        //比较年龄
        if (nowDate - age             return false;
        }
        return true;
    }
    //浮点数
    , isFloat: function (num) { //# 是否为 浮点数
        return /^(([1-9]\d*)|(\d+\.\d+)|0)$/.test(num);
    }
    //正整数
    , isInt: function (num) { //# 是否为 正整数
        return /^[1-9]\d*$/.test(num);
    }
    //是否全为汉字
    , isChinese: function (str) { //# 是否全为 汉字
        return /^([\u4E00-\u9FA5]|[\uFE30-\uFFA0])+$/gi.test(str);
    }
};

  4.操作className的方法集

复制代码 代码如下:

PFan.conClass = {
    hasClass:function(){
        return ele.className.match(new RegExp('(\\s|^)'+cls+'(\\s|$)'));
    },
    addClass:function(){
        if (!hasClass(ele,cls)) ele.className += " "+cls;
    },
    removeClass:function(){
        if (hasClass(ele,cls)) {
            var reg = new RegExp('(\\s|^)'+cls+'(\\s|$)');
            ele.className=ele.className.replace(reg,' ');
        }        
    }
}

  5.操作字符串方法

复制代码 代码如下:

pFan.string = { //# 字符串
    codeHtml: function (content) { //# 转义 HTML 字符
        return this.replace(content, {
            '&': "&"
            , '"': """
            , "'": '''
            , '             , '>': ">"
            , ' ': " "
            , '\t': " "
            , '(': "("
            , ')': ")"
            , '*': "*"
            , '+': "+"
            , ',': ","
            , '-': "-"
            , '.': "."
            , '/': "/"
            , '?': "?"
            , '\\': "\"
            , '\n': "
"
        });
    }
    //重复字符串
    , repeat: function (word, length, end) { //# 重复字符串
        end = end || ''; //加在末位
        length = ~~length;
        return new Array(length * 1 + 1).join(word) + '' + end;
    }
    //增加前缀
    , addPre: function (pre, word, size) { //# 补齐。如给数字前 加 0
        pre = pre || '0';
        size = parseInt(size) || 0;
        word = String(word || '');
        var length = Math.max(0, size - word.length);
        return this.repeat(pre, length, word);
    }
    //去除两边空格
    , trim: function (text) { //# 去除两边空格
        return (text || '').replace(/^\s+|\s$/, '');
    }
     //去除左边空格
    ,ltrim:function(){
        return s.replace( /^(\s*| *)/, "");
    }
    //去除右边空格
    ,rtrim:function(){
        return s.replace( /(\s*| *)$/, "");
    }
    //返回脚本内容
    ,evalscript:function(s) {
        if(s.indexOf('         var p = /<script>]*&#63;>([^\x00]*&#63;)<\/script>/ig;<br /> var arr = [];<br /> while(arr = p.exec(s)) {<br /> var p1 = /<script[^\>]*&#63;src=\"([^\>]*&#63;)\"[^\>]*&#63;(reload=\"1\")&#63;(&#63;:charset=\"([\w\-]+&#63;)\")&#63;><\/script>/i;<br /> var arr1 = [];<br /> arr1 = p1.exec(arr[0]);<br /> if(arr1) {<br /> appendscript(arr1[1], '', arr1[2], arr1[3]);<br /> } else {<br /> p1 = /<script(.*&#63;)>([^\x00]+&#63;)<\/script>/i;<br /> arr1 = p1.exec(arr[0]);<br /> appendscript('', arr1[2], arr1[1].indexOf('reload=') != -1);<br /> }<br /> }<br /> return s;<br /> }<br /> //清除脚本内容<br /> ,stripscript:function(){<br /> return s.replace(/<script.*&#63;>.*&#63;<\/script>/ig, '');<br /> }<br /> //字符串替换<br /> , replace: function (str, re) { //# 字符串替换<br /> str = str || '';<br /> for (var key in re) {<br /> replace(key, re[key]);<br /> };<br /> function replace(a, b) {<br /> var arr = str.split(a);<br /> str = arr.join(b);<br /> };<br /> return str;<br /> }<br /> , xss: function (str, type) { //# XSS 转义<br /> //空过滤<br /> if (!str) {<br /> return str === 0 &#63; "0" : "";<br /> }<br /> switch (type) {<br /> case "html": //过滤html字符串中的XSS<br /> return str.replace(/[&'"<>\/\\\-\x00-\x09\x0b-\x0c\x1f\x80-\xff]/g, function (r) {<br /> return "&#" + r.charCodeAt(0) + ";"<br /> }).replace(/ /g, " ").replace(/\r\n/g, "<br />").replace(/\n/g, "<br />").replace(/\r/g, "<br />");<br /> break;<br /> case "htmlEp": //过滤DOM节点属性中的XSS<br /> return str.replace(/[&'"<>\/\\\-\x00-\x1f\x80-\xff]/g, function (r) {<br /> return "&#" + r.charCodeAt(0) + ";"<br /> });<br /> break;<br /> case "url": //过滤url<br /> return escape(str).replace(/\+/g, "%2B");<br /> break;<br /> case "miniUrl":<br /> return str.replace(/%/g, "%25");<br /> break;<br /> case "script":<br /> return str.replace(/[\\"']/g, function (r) {<br /> return "\\" + r;<br /> }).replace(/%/g, "<a href="file://\\x25").replace(/\n/g">\\x25").replace(/\n/g, "<a href="file://\\n").replace(/\r/g">\\n").replace(/\r/g, "<a href="file://\\r").replace(/\x01/g">\\r").replace(/\x01/g, "<a href="file://\\x01">\\x01");<br /> break;<br /> case "reg":<br /> return str.replace(/[\\\^\$\*\+\&#63;\{\}\.\(\)\[\]]/g, function (a) {<br /> return "\\" + a;<br /> });<br /> break;<br /> default:<br /> return escape(str).replace(/[&'"<>\/\\\-\x00-\x09\x0b-\x0c\x1f\x80-\xff]/g, function (r) {<br /> return "&#" + r.charCodeAt(0) + ";"<br /> }).replace(/ /g, " ").replace(/\r\n/g, "<br />").replace(/\n/g, "<br />").replace(/\r/g, "<br />");<br /> break;<br /> }<br /> }<br /> // badword , 过滤敏感词<br /> <a>//@text : 要过滤的文本 , 类型 :字符串<br /> <a>//@words : 敏感词 ,类型,数组, 如 : ['你妹', '我丢' ,'我靠']<br /> // 如果 用 正则匹配, text 长度 100万,words 100万,需要 4秒!<br /> , badWord: function (text, words) { //# 敏感词过滤<br /> text = String(text || '');<br /> words = words || [];<br /> var reg = new RegExp(words.join('|'), 'g')<br /> , _self = this;<br /> return text.replace(reg, function ($0) {<br /> var length = String($0 || '').length;<br /> return _self.repeat('*', length);<br /> });<br /> }<br /> };<br /> </script>

  6.加密方法集

复制代码 代码如下:

pFan.encrypt = { //# 加密
    md5: function (words) {  //# md5 哈希算法
        /*
         * Crypto-JS 3.1.2
         * http://code.google.com/p/crypto-js
         */
        var CryptoJS = function (s, p) {
            var m = {}, l = m.lib = {}, n = function () { }, r = l.Base = { extend: function (b) { n.prototype = this; var h = new n; b && h.mixIn(b); h.hasOwnProperty("init") || (h.init = function () { h.$super.init.apply(this, arguments) }); h.init.prototype = h; h.$super = this; return h }, create: function () { var b = this.extend(); b.init.apply(b, arguments); return b }, init: function () { }, mixIn: function (b) { for (var h in b) b.hasOwnProperty(h) && (this[h] = b[h]); b.hasOwnProperty("toString") && (this.toString = b.toString) }, clone: function () { return this.init.prototype.extend(this) } }, q = l.WordArray = r.extend({ init: function (b, h) { b = this.words = b || []; this.sigBytes = h != p ? h : 4 * b.length }, toString: function (b) { return (b || t).stringify(this) }, concat: function (b) { var h = this.words, a = b.words, j = this.sigBytes; b = b.sigBytes; this.clamp(); if (j % 4) for (var g = 0; g >> 2] |= (a[g >>> 2] >>> 24 - 8 * (g % 4) & 255) >> 2] = a[g >>> 2]; else h.push.apply(h, a); this.sigBytes += b; return this }, clamp: function () { var b = this.words, h = this.sigBytes; b[h >>> 2] &= 4294967295 >> 2] >>> 24 - 8 * (j % 4) & 255; g.push((k >>> 4).toString(16)); g.push((k & 15).toString(16)) } return g.join("") }, parse: function (b) { for (var a = b.length, g = [], j = 0; j >> 3] |= parseInt(b.substr(j, 2), 16) >> 2] >>> 24 - 8 * (j % 4) & 255)); return g.join("") }, parse: function (b) { for (var a = b.length, g = [], j = 0; j >> 2] |= (b.charCodeAt(j) & 255)                 g = l.BufferedBlockAlgorithm = r.extend({ reset: function () { this._data = new q.init; this._nDataBytes = 0 }, _append: function (b) { "string" == typeof b && (b = u.parse(b)); this._data.concat(b); this._nDataBytes += b.sigBytes }, _process: function (b) { var a = this._data, g = a.words, j = a.sigBytes, k = this.blockSize, m = j / (4 * k), m = b ? s.ceil(m) : s.max((m | 0) - this._minBufferSize, 0); b = m * k; j = s.min(4 * b, j); if (b) { for (var l = 0; l         }(Math);
        (function (s) {
            function p(a, k, b, h, l, j, m) { a = a + (k & b | ~k & h) + l + m; return (a >> 32 - j) + k } function m(a, k, b, h, l, j, m) { a = a + (k & h | b & ~h) + l + m; return (a >> 32 - j) + k } function l(a, k, b, h, l, j, m) { a = a + (k ^ b ^ h) + l + m; return (a >> 32 - j) + k } function n(a, k, b, h, l, j, m) { a = a + (b ^ (k | ~h)) + l + m; return (a >> 32 - j) + k } for (var r = CryptoJS, q = r.lib, v = q.WordArray, t = q.Hasher, q = r.algo, a = [], u = 0; 64 > u; u++) a[u] = 4294967296 * s.abs(s.sin(u + 1)) | 0; q = q.MD5 = t.extend({
                _doReset: function () { this._hash = new v.init([1732584193, 4023233417, 2562383102, 271733878]) }, _doProcessBlock: function (g, k) {
                    for (var b = 0; 16 > b; b++) { var h = k + b, w = g[h]; g[h] = (w >> 24) & 16711935 | (w >> 8) & 4278255360 } var b = this._hash.words, h = g[k + 0], w = g[k + 1], j = g[k + 2], q = g[k + 3], r = g[k + 4], s = g[k + 5], t = g[k + 6], u = g[k + 7], v = g[k + 8], x = g[k + 9], y = g[k + 10], z = g[k + 11], A = g[k + 12], B = g[k + 13], C = g[k + 14], D = g[k + 15], c = b[0], d = b[1], e = b[2], f = b[3], c = p(c, d, e, f, h, 7, a[0]), f = p(f, c, d, e, w, 12, a[1]), e = p(e, f, c, d, j, 17, a[2]), d = p(d, e, f, c, q, 22, a[3]), c = p(c, d, e, f, r, 7, a[4]), f = p(f, c, d, e, s, 12, a[5]), e = p(e, f, c, d, t, 17, a[6]), d = p(d, e, f, c, u, 22, a[7]), c = p(c, d, e, f, v, 7, a[8]), f = p(f, c, d, e, x, 12, a[9]), e = p(e, f, c, d, y, 17, a[10]), d = p(d, e, f, c, z, 22, a[11]), c = p(c, d, e, f, A, 7, a[12]), f = p(f, c, d, e, B, 12, a[13]), e = p(e, f, c, d, C, 17, a[14]), d = p(d, e, f, c, D, 22, a[15]), c = m(c, d, e, f, w, 5, a[16]), f = m(f, c, d, e, t, 9, a[17]), e = m(e, f, c, d, z, 14, a[18]), d = m(d, e, f, c, h, 20, a[19]), c = m(c, d, e, f, s, 5, a[20]), f = m(f, c, d, e, y, 9, a[21]), e = m(e, f, c, d, D, 14, a[22]), d = m(d, e, f, c, r, 20, a[23]), c = m(c, d, e, f, x, 5, a[24]), f = m(f, c, d, e, C, 9, a[25]), e = m(e, f, c, d, q, 14, a[26]), d = m(d, e, f, c, v, 20, a[27]), c = m(c, d, e, f, B, 5, a[28]), f = m(f, c, d, e, j, 9, a[29]), e = m(e, f, c, d, u, 14, a[30]), d = m(d, e, f, c, A, 20, a[31]), c = l(c, d, e, f, s, 4, a[32]), f = l(f, c, d, e, v, 11, a[33]), e = l(e, f, c, d, z, 16, a[34]), d = l(d, e, f, c, C, 23, a[35]), c = l(c, d, e, f, w, 4, a[36]), f = l(f, c, d, e, r, 11, a[37]), e = l(e, f, c, d, u, 16, a[38]), d = l(d, e, f, c, y, 23, a[39]), c = l(c, d, e, f, B, 4, a[40]), f = l(f, c, d, e, h, 11, a[41]), e = l(e, f, c, d, q, 16, a[42]), d = l(d, e, f, c, t, 23, a[43]), c = l(c, d, e, f, x, 4, a[44]), f = l(f, c, d, e, A, 11, a[45]), e = l(e, f, c, d, D, 16, a[46]), d = l(d, e, f, c, j, 23, a[47]), c = n(c, d, e, f, h, 6, a[48]), f = n(f, c, d, e, u, 10, a[49]), e = n(e, f, c, d,
                                C, 15, a[50]), d = n(d, e, f, c, s, 21, a[51]), c = n(c, d, e, f, A, 6, a[52]), f = n(f, c, d, e, q, 10, a[53]), e = n(e, f, c, d, y, 15, a[54]), d = n(d, e, f, c, w, 21, a[55]), c = n(c, d, e, f, v, 6, a[56]), f = n(f, c, d, e, D, 10, a[57]), e = n(e, f, c, d, t, 15, a[58]), d = n(d, e, f, c, B, 21, a[59]), c = n(c, d, e, f, r, 6, a[60]), f = n(f, c, d, e, z, 10, a[61]), e = n(e, f, c, d, j, 15, a[62]), d = n(d, e, f, c, x, 21, a[63]); b[0] = b[0] + c | 0; b[1] = b[1] + d | 0; b[2] = b[2] + e | 0; b[3] = b[3] + f | 0
                }, _doFinalize: function () { var a = this._data, k = a.words, b = 8 * this._nDataBytes, h = 8 * a.sigBytes; k[h >>> 5] |= 128 >> 9 >> 24) & 16711935 | (l >> 8) & 4278255360; k[(h + 64 >>> 9 >> 24) & 16711935 | (b >> 8) & 4278255360; a.sigBytes = 4 * (k.length + 1); this._process(); a = this._hash; k = a.words; for (b = 0; 4 > b; b++) h = k[b], k[b] = (h >> 24) & 16711935 | (h >> 8) & 4278255360; return a }, clone: function () { var a = t.clone.call(this); a._hash = this._hash.clone(); return a }
            }); r.MD5 = t._createHelper(q); r.HmacMD5 = t._createHmacHelper(q)
        })(Math);
        return CryptoJS.MD5(words).toString();
    }
    // sha1
    , sha1: function (words) { //# sha1  哈希算法
        var CryptoJS = function (e, m) { var p = {}, j = p.lib = {}, l = function () { }, f = j.Base = { extend: function (a) { l.prototype = this; var c = new l; a && c.mixIn(a); c.hasOwnProperty("init") || (c.init = function () { c.$super.init.apply(this, arguments) }); c.init.prototype = c; c.$super = this; return c }, create: function () { var a = this.extend(); a.init.apply(a, arguments); return a }, init: function () { }, mixIn: function (a) { for (var c in a) a.hasOwnProperty(c) && (this[c] = a[c]); a.hasOwnProperty("toString") && (this.toString = a.toString) }, clone: function () { return this.init.prototype.extend(this) } }, n = j.WordArray = f.extend({ init: function (a, c) { a = this.words = a || []; this.sigBytes = c != m ? c : 4 * a.length }, toString: function (a) { return (a || h).stringify(this) }, concat: function (a) { var c = this.words, q = a.words, d = this.sigBytes; a = a.sigBytes; this.clamp(); if (d % 4) for (var b = 0; b >> 2] |= (q[b >>> 2] >>> 24 - 8 * (b % 4) & 255) >> 2] = q[b >>> 2]; else c.push.apply(c, q); this.sigBytes += a; return this }, clamp: function () { var a = this.words, c = this.sigBytes; a[c >>> 2] &= 4294967295 >> 2] >>> 24 - 8 * (d % 4) & 255; b.push((f >>> 4).toString(16)); b.push((f & 15).toString(16)) } return b.join("") }, parse: function (a) { for (var c = a.length, b = [], d = 0; d >> 3] |= parseInt(a.substr(d, 2), 16) >> 2] >>> 24 - 8 * (d % 4) & 255)); return b.join("") }, parse: function (a) { for (var c = a.length, b = [], d = 0; d >> 2] |= (a.charCodeAt(d) & 255)         (function () { var e = CryptoJS, m = e.lib, p = m.WordArray, j = m.Hasher, l = [], m = e.algo.SHA1 = j.extend({ _doReset: function () { this._hash = new p.init([1732584193, 4023233417, 2562383102, 271733878, 3285377520]) }, _doProcessBlock: function (f, n) { for (var b = this._hash.words, h = b[0], g = b[1], e = b[2], k = b[3], j = b[4], a = 0; 80 > a; a++) { if (16 > a) l[a] = f[n + a] | 0; else { var c = l[a - 3] ^ l[a - 8] ^ l[a - 14] ^ l[a - 16]; l[a] = c >> 31 } c = (h >> 27) + j + l[a]; c = 20 > a ? c + ((g & e | ~g & k) + 1518500249) : 40 > a ? c + ((g ^ e ^ k) + 1859775393) : 60 > a ? c + ((g & e | g & k | e & k) - 1894007588) : c + ((g ^ e ^ k) - 899497514); j = k; k = e; e = g >> 2; g = h; h = c } b[0] = b[0] + h | 0; b[1] = b[1] + g | 0; b[2] = b[2] + e | 0; b[3] = b[3] + k | 0; b[4] = b[4] + j | 0 }, _doFinalize: function () { var f = this._data, e = f.words, b = 8 * this._nDataBytes, h = 8 * f.sigBytes; e[h >>> 5] |= 128 >> 9 >> 9         return CryptoJS.SHA1(words).toString();
    }
    // time33 哈希
    , time33: function (words) { //# time33 哈希算法
        words = words || '';
        //哈希time33算法
        for (var i = 0, len = words.length, hash = 5381; i             hash += (hash         };
        return hash & 0x7fffffff;
    }
}

  7.日期方法集

复制代码 代码如下:

pFan.date = {
    //返回时间戳
    getTimeStamp:function(){
        var timestamp=new Date().getTime();
        return timestamp.toString();
    },
    //时间戳转为日期格式
    //@nS为时间戳
    getLocalTime: function(nS) { 
        return new Date(parseInt(nS) * 1000).toLocaleString().substr(0,17);
    },
    //@time , 时间 , 如 new Date('2013/11/10 0:12:12')
    //@pre , 星期的 前缀,如:周 ,星期
    //@ nums ,如:一二三四五六日
    getWeek: function (time, pre, nums) { //# 获取星期几
        time = typeof time == 'string' ? this.parse(time) : (time || new Date());
        pre = pre || '星期'; //周
        nums = nums || '日一二三四五六';
        return pre + nums[time.getDay()];
    },
    //@formatType : YYYY, YY, MM
    //@ time : new Date('2013/11/12')
    //@weeks : 日一二三四五六
    format: function (formatType, time, weeks) { //格式化输出时间
        var pre = '0',
        formatType = for
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