JS的常用共通方法整理 2017109

常用的共通方法整理：

/**
* 获取UUID
* @param {} len
* @param {} radix
* @return {}
*/
getUUID : function(len, radix){var CHARS = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split(''); var chars = CHARS, uuid = [], i;radix = radix || chars.length;if (len){for (i = 0; i < len; i++) uuid[i] = chars[0 | Math.random()*radix];} else { var r; uuid[8] = uuid[13] = uuid[18] = uuid[23] = '-';uuid[14] = '4'; for (i = 0; i < 36; i++) {if (!uuid[i]) {r = 0 | Math.random()*16; uuid[i] = chars[(i == 19) ? (r & 0x3) | 0x8 : r];}}} return uuid.join(''); },

/**
* 转换为boolean类型
* @param {} v
* @return {}
*/
getBoolean : function(v){return v==true||v=='1'||v==1||v=='true'},

/**
* 数据对象转换为string值(url参数)
* @param paramsobj  数据对象{a:1,b=2}
* @return string(&a=1&b=2)
*/
parseParams:function(paramsobj){var paramsstr = "";for(var key in paramsobj) {var value = paramsobj[key];if(Ext.isEmpty(value, true)) continue;if(Ext.isArray(value)) {for(var i=0; i<value.length; i++) {paramsstr += "&" + key + "=" + value[i];}}else {paramsstr += "&" + key + "=" + value;}}return paramsstr;},

/**
* 字符串转对象
* @param {} v 字符串
* @return {}
*/
toObject : function(v) {return Ext.isEmpty(v)?v:Ext.decode(v);},

/**
* 对象转字符串
* @param {} v 对象
* @return {}
*/
toString:function(v){return Ext.encode(v)},

/**
* 数据为{user:{name:"111"}}；转换数据为{"user.name": "111"}。
* @param {} obj
* @param {} name
* @param {} map
* @return {}
*/
toParams : function(obj,name,map) {if(!Ext.isObject(obj))return obj;map = map?map:{};for(key in obj){var o = obj[key];if(Ext.isObject(o)){CU.toParams(o,key,map);}else{if(Ext.isEmpty(name)){map[key] = o;}else{map[name+"."+key] = o;}}}return map;},

/**
* 对象日志
* */
log:function(obj){console.log(obj);},

/**
* 根据类和方法获取url
*/
getURL:function(service,method){var key = service+"_"+method;return cfg.urls[key.toUpperCase()].url},

/**
* 将数值四舍五入后格式化.
* @param num 数值(Number或者String)
* @param cent 要保留的小数位(Number)
* @param isThousand 是否需要千分位 0:不需要,1:需要(数值类型);
* @return 格式的字符串,如'1,234,567.45'
* @type String
*/
formatNumber:function(num,cent,isThousand) {num = num.toString().replace(/\$|\,/g,'');if(isNaN(num))num = "0";if(isNaN(cent))cent = 0;cent = parseInt(cent);cent = Math.abs(cent);if(typeof isThousand == 'boolean')isThousand = isThousand?"1":"0";if(isNaN(isThousand))isThousand = 0;isThousand = parseInt(isThousand);if(isThousand < 0)isThousand = 0;if(isThousand >=1)isThousand = 1;sign = (num == (num = Math.abs(num)));num = Math.floor(num*Math.pow(10,cent)+0.50000000001);cents = num%Math.pow(10,cent);num = Math.floor(num/Math.pow(10,cent)).toString();cents = cents.toString();while(cents.length<cent) cents = "0" + cents;if(isThousand == 0)return (cent==0)?(((sign)?'':'-') + num):(((sign)?'':'-') + num + '.' + cents);for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)num = num.substring(0,num.length-(4*i+3))+','+num.substring(num.length-(4*i+3));return (cent==0)?(((sign)?'':'-') + num):(((sign)?'':'-') + num + '.' + cents);},

/**
* 获取中位数
*/
getMd:function(datas){Ext.Array.sort(datas);var index = parseInt((datas.length+1)/2);return datas[index];},

/**
* 获取众数
*/
getMo:function(datas){var countArray = [datas.length];for (var i = 0; i < datas.length; i++) {var val = datas[i];var num = 0;for (var j = 0; j < datas.length; j++) {if(datas[j]==val)num++;}countArray[i] = num;}var count=0,val = "";for(var i = 0;i<countArray.length;i++){if(countArray[i]>1 && countArray[i]>count){count = countArray[i];val = datas[i];}}return val;},

/**
* 获取平方差
* @param {} datas 数据数组
* @param {} format 小数位 缺省：0.00
* @return {}
*/
getS2:function(datas,format){format = format||'0.00';var m = Ext.Array.mean(datas);var val = 0,n=datas.length;for (var i = 0; i < n; i++) {var x = datas[i];val+=Math.pow(x-m,2);}return Ext.util.Format.number(val/n,format);},

/**
* 获取标准差
* @param {} datas 数据数组
* @param {} format 小数位 缺省：0.00
* @return {}
*/
getSd:function(datas,format){format = format||'0.00';var m = Ext.Array.mean(datas);var val = 0,n=datas.length;for (var i = 0; i < n; i++) {var x = datas[i];val+=Math.pow(x-m,2);}return Ext.util.Format.number(Math.sqrt(val/n),format);},

/**
* 替换字符串
* @param {} str 字符串
* @param {} s1  替换字符串
* @param {} s2  替换为
* @return {}
*/
replaceAll: function (str,s1,s2){return str.replace(new RegExp(s1,"gm"),s2);},

/**
* 获取数字型数据
* @param {} value
* @return {}
*/
getNumber:function(value){return Ext.isNumber(value)?value:isNaN(Number(value))?0:Number(value);},

/**
* 获取随机颜色
* @return {}
*/
getRandomColor : function (){return "#"+("00000"+((Math.random()*16777215+0.5)>>0).toString(16)).slice(-6);},

/**
* 获取当前客户端日期
* @return 日期格式(yyyy-MM-dd)
*/
getDate : function() {return CU.toDateString(new Date());},

/**
* 获取当前客户端时间
* @return 时间格式(yyyy-MM-dd hh:mm:ss)
*/
getTime : function() {return CU.toTimeString(new Date());},

/**
* 自动补全日期字符串格式
* @param {} value  2015=2015-01-01、2015-02 = 2015-02-01
* @return {}
*/
toDateStringSupply : function(value) {value = value+"";var length = value.length;value = length == 4 ? value += "-01-01" : length == 7? value += '-01': value;return value;},

/**
* 字符串转换为日期格式
* @param value 字符串数据(例如:2013-02-27)
* @return 日期对象
*/
toDate : function(value) {return new Date(CU.toDateStringSupply(value).replace(/-/g,"/"));},

/**
* 日期转换为字符串
* @param date 日期
* @return 字符串日期(2013-02-27)
*/
toDateString : function(date) {var y = date.getFullYear();var m = date.getMonth()+1;if(m < 10) m = "0"+m;var d = date.getDate();if(d < 10) d = "0"+d;return y+"-"+m+"-"+d;},

/**
* 日期转换为字符串
* @param  date 日期
* @return 字符串时间(2013-02-27 17:10:00)
*/
toTimeString : function(date) {var y = date.getFullYear();var m = date.getMonth()+1;if(m < 10) m = "0"+m;var d = date.getDate();if(d < 10) d = "0"+d;var h = date.getHours();if(h < 10) h = "0"+h;var mi = date.getMinutes();if(mi < 10) mi = "0"+mi;var s = date.getSeconds();if(s < 10) s = "0"+s;return y+"-"+m+"-"+d+" "+h+":"+mi+":"+s;},

/**
* 获取日期差异
* @param small  开始日期long
* @param big    结束日期long
* @return 天
*/
getDateDiff : function(small, big) {return (big-small)/1000/60/60/24;},

/**
* 几天以前的日期
* @param day 天数
* @return 日期对象
*/
getBeforeDate : function(date,day) {date == date || new Date(); return new Date(date.getTime()-1000*60*60*24*day);},

/**
* 几天以前的日期
* @param day 天数
* @return 字符串(2013-02-27)
*/
getBeforeDateString : function(date,day) {var date = CU.getBeforeDate(date,day);var y = date.getFullYear();var m = date.getMonth()+1;var d = date.getDate();if(m < 10) m = "0"+m;if(d < 10) d = "0"+d;return y+"-"+m+"-"+d;},

/**
* 几天以后的日期
* @param day 天数
* @return 日期对象
*/
getAfterDate : function(day) {return new Date(new Date().getTime()+1000*60*60*24*day);},

/**
* 几天某日期以后几天的日期
* @param data 日期对象
* @param day 天数
* @return 日期对象
*/
getAfterDate : function(date,day) {date = date || new Date(); return new Date(date.getTime()+1000*60*60*24*day);},

/**
* 几天以后的日期
* @param day 天数
* @return 字符串(2013-02-27)
*/
getAfterDateString : function(date,day) {var date = CU.getAfterDate(date,day);var y = date.getFullYear();var m = date.getMonth()+1;var d = date.getDate();if(m < 10) m = "0"+m;if(d < 10) d = "0"+d;return y+"-"+m+"-"+d;},

/**
* 获取某年某月的天数
* @param year 年份
* @param month 月份
* @return Number 天数
*/
getDaysInMonth : function(year, month) {switch (month) {case 1:case 3:case 5:case 7:case 8:case 10:case 12: return 31;case 4:case 6:case 9:case 11: return 30;case 2: return ((year%4==0 && year%100!=0) || (year%400==0)) ? 29 : 28;default: return -1;}},

/**
* 获取当前(指定)日期的月份
* @param  date 日期格式
* @return 字符串 (2013-03)
*/
getYearMonth : function(date){date = Ext.isEmpty(date)?date = new Date():date;var y = date.getFullYear();var m = date.getMonth()+1;if(m < 10) m = "0"+m; return y+"-"+m;},

/**
* 获取指定日期几个月以后的时间
* @param  date 日期格式
* @param  count 月数
* @return 字符串 (2013-03)
*/
getAfterYearMonth : function(date,count){date = Ext.isEmpty(date)?date = new Date():date;var y = date.getFullYear();var m = date.getMonth()+1;count = Ext.isEmpty(count)?1:count;m = m+count;if(m%12==0){y+=m/12-1;m=12;}else if(m>12){y+= parseInt(m/12);m=m%12;}if(m < 10) m = "0"+m;return y+"-"+m;},

/**
* 获取指定日期几个月以前的时间
* @param  date  日期格式
* @param  count 月数
* @return 字符串 (2013-03)
*/
getBeforeYearMonth : function(date,count){date = Ext.isEmpty(date)?date = new Date():date;var y = date.getFullYear();var m = date.getMonth()+1;var sum = (y*12+m) -count;if(sum%12==0){y = parseInt(sum/12)-1;m = 12;}else{y = parseInt(sum/12);m = sum%12;}if(m < 10) m = "0"+m;return y+"-"+m;},

/**
* 根据文件类型获取iconCls图标
* @param {} v
* @return {}
*/
getFileTypeIconCls : function(v){var iconCls = "x-fa fa-file";v = Ext.isEmpty(v)?"":v;switch(v.toUpperCase()){case 'DOC':case 'DOCX':iconCls = 'x-fa fa-file-word-o';break;case 'TXT':iconCls = 'x-fa fa-file-text';break;case 'PDF':iconCls = 'x-fa fa-file-pdf-o';break;case 'MP3':iconCls = 'x-fa fa-file-audio-o';break;case 'XLS':case 'XLSX': iconCls = 'x-fa fa-file-excel-o';break;case 'ZIP':case 'RAR': iconCls = 'x-fa fa-file-archive-o';break;case 'JPG':case 'GIF': case 'PNG' : iconCls = 'x-fa fa-file-image-o';break;}return iconCls;},

/**
* 获取文件后侧名
* @param {} file
* @return {}
*/
getFileSuffix:function(file){if(Ext.isEmpty(file))return "";var beginIndex  = file.lastIndexOf(".");return file.substring(beginIndex+1,file.length);},

/**
* 递归读取全部数据
* @param {} datas  数据集合
* @param {} callback  回调方法
* @param {} scope
* @param {} childname  子节点名称 缺省children
*/
eachChild:function(datas,callback,scope,childname){scope = scope || this;var child = childname || 'children';var nextChildNode  = function(nodes){Ext.each(nodes,function(data){Ext.callback(callback,scope,[data]);var children = data[child];if(Ext.isArray(children) && children.length>0){nextChildNode(children,callback,scope,child);}});};nextChildNode(datas,callback,scope,child);},

/**
* 添加Cookie
* @param {} name cookie名称
* @param {} value cookie值
* @param {} name 有效时间 默认30天
*/
setCookie:function (name,value, days){var Days = days ? days : 30;var exp = new Date();exp.setTime(exp.getTime() + Days*24*60*60*1000);document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString() + ";path=/";},

/**
* 获取Cookie
* @param {} name cookie名称
*/
getCookie:function (name){var arr,reg=new RegExp("(^| )"+name+"=([^;]*)(;|$)");if(arr=document.cookie.match(reg))return unescape(arr[2]);else return null;},

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

/**
* 将特殊字符转化 半角-全角
* @param {} str  字符串
*/
uncheckedstr: function (str) { if(!str) return ""; var newStr = str.replace(/,/g, '，').replace(/\./g, '．').replace(/:/g, '：').replace(/;/g, '；').replace(/!/g, '！').replace(/\?/g, '？').replace(/-/g, '－').replace(/'/g, '＇').replace(/"/g, '＂').replace(/\(/g, '（').replace(/\)/g, '）').replace(/\[/g, '［').replace(/\]/g, '］').replace(/\&/g, '＆').replace(/\{/g, '｛').replace(/\}/g, '｝').replace(/\</g, '＜').replace(/\>/g, '＞').replace(/\@/g, '＠').replace(/\\#/g, '＃').replace(/\\$/g, '＄').replace(/\^/g, '＾').replace(/\*/g, '＊').replace(/\+/g, '＋').replace(/\=/g, '＝').replace(/\_/g, '＿').replace(/\//g, '／'); return newStr; },

/**
* 获取URL上的参数
* @param name 参数名称
*/
getUrlParam: function (name) { var reg = new RegExp("(^|&)"+ name +"=([^&]*)(&|$)"); var r = window.location.search.substr(1).match(reg); if(r!=null)return  unescape(r[2]); return null; }
}