项目中用到的小功能代码
cookie，阻止IOS底部拖动，截取地址栏参数，检测特殊字符，身份证号，银行卡号，手机号，移动端meta，
cookie ： 移动端+PC端
1 var Cookie={Get:function(a){var d,b=document.cookie.split("; "),c=[];for(i=0;i<b.length;i++)d=b[i].split("="),c[d[0]]=unescape(d[1]);return a?c[a]:c},Set:function(a,b,c,d,e,f){var g,h;return a&&b?""==a||""==b?!1:(c&&(/^[0-9]+$/.test(c)?(g=new Date,c=new Date(g.getTime()+1e3*c).toGMTString()):/^wed, \d{2} \w{3} \d{4} \d{2}\:\d{2}\:\d{2} GMT$/.test(c)||(c=void 0)),h=a+"="+escape(b)+";"+(c?" expires="+c+";":"")+(d?"path="+d+";":"")+(e?"domain="+e+";":"")+(f&&0!=f?"secure":""),h.length<4096?(document.cookie=h,!0):!1):!1},Del:function(a,b,c){return a?""==a?!1:this.Get(a)?(document.cookie=a+"=;"+(b?"path="+b+";":"")+(c?"domain="+c+";":"")+"expires=Thu, 01-Jan-1970 00:00:01 GMT;",!0):!1:!1}},Cache=function(){var storage,api={},pre="NetCQ_",win=window,doc=win.document,localStorageName="localStorage",globalStorageName="globalStorage",JsonToStr=function(a){var c,b=[];if("string"==typeof a)return'"'+a.replace(/([\'\"\\])/g,"\\$1").replace(/(\n)/g,"\\n").replace(/(\r)/g,"\\r").replace(/(\t)/g,"\\t")+'"';if("undefined"==typeof a)return"undefined";if("object"==typeof a){if(null===a)return"null";if(a.sort){for(c=0;c<a.length;c++)b.push(JsonToStr(a[c]));b="["+b.join()+"]"}else{for(c in a)b.push('"'+c+'":'+JsonToStr(a[c]));b="{"+b.join()+"}"}return b}return a.toString()};return api.set=function(){},api.get=function(){},api.remove=function(){},api.clear=function(){},localStorageName in win&&win[localStorageName]?(storage=win[localStorageName],api.set=function(a,b){"object"==typeof b?storage.setItem(pre+a,JsonToStr(b)):storage.setItem(pre+a,b)},api.get=function(key){var _v,_cache=storage.getItem(pre+key)||"";try{_v=eval("("+_cache+")")}catch(e){_v=_cache}return _v},api.clear=function(a){a?storage.removeItem(pre+a):storage.clear()}):globalStorageName in win&&win[globalStorageName]?(storage=win[globalStorageName][win.location.hostname],api.set=function(a,b){"object"==typeof b?storage[pre+a]=JsonToStr(b):storage[a]=b},api.get=function(key){var _v,_cache=storage[pre+key].value||"";try{_v=eval("("+_cache+")")}catch(e){_v=_cache}return _v},api.clear=function(a){if(a)delete storage[pre+a];else for(var a in storage)delete storage[a]}):(api.set=function(a,b){Cookie.Set(pre+a,b)},api.get=function(a){return Cookie.Get(pre+a)},api.clear=function(a){var b,c;if(a)Cookie.Del(pre+a);else if(b=document.cookie.match(/[^ =;]+(?=\=)/g))for(c=b.length;c--;)document.cookie=b[c]+"=0;expires="+new Date(0).toUTCString()}),api}(); 2
用法：
Cache.set("flag",1);
Cache.get("flag");
Cache.clear();
判断是否运行在微信端：
function Is_weixn(){ var ua = navigator.userAgent.toLowerCase(); return (ua.match(/MicroMessenger/i)=="micromessenger"); }
阻止IOS端 底部拖动：
1 //阻止IOS底部拖动 2 function noscroll(){ 3 var content = document.querySelector('.content') || null; 4 var startY; 5 6 if(content){ 7 content.addEventListener('touchstart', function (e) { 8 startY = e.touches[0].clientY; 9 }); 10 11 content.addEventListener('touchmove', function (e) { 12 // 高位表示向上滚动 13 // 底位表示向下滚动 14 // 1容许 0禁止 15 var status = '11'; 16 var ele = this; 17 18 var currentY = e.touches[0].clientY; 19 20 if (ele.scrollTop === 0) { 21 // 如果内容小于容器则同时禁止上下滚动 22 status = ele.offsetHeight >= ele.scrollHeight ? '00' : '01'; 23 } else if (ele.scrollTop + ele.offsetHeight >= ele.scrollHeight) { 24 // 已经滚到底部了只能向上滚动 25 status = '10'; 26 } 27 28 if (status != '11') { 29 // 判断当前的滚动方向 30 var direction = currentY - startY > 0 ? '10' : '01'; 31 // 操作方向和当前允许状态求与运算，运算结果为0，就说明不允许该方向滚动，则禁止默认事件，阻止滚动 32 if (!(parseInt(status, 2) & parseInt(direction, 2))) { 33 e.preventDefault(); 34 } 35 } 36 }); 37 } 38 } 39
截取地址栏？后的参数对：
1 var getUrlVars = function() { 2 var vars = [], 3 hash; 4 var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&'); 5 for (var i = 0; i < hashes.length; i++) { 6 hash = hashes[i].split('='); 7 vars.push(hash[0]); 8 vars[hash[0]] = hash[1]; 9 } 10 return vars; 11 }
检测是否包含特殊字符：
1 function containSpecial(s) 2 { 3 var containSpecial = RegExp(/[(\ )(\~)(\!)(\@)(\#)(\$)(\%)(\^)(\&)(\*)(\()(\))(\-)(\_)(\+)(\=)(\[)(\])(\{)(\})(\|)(\\)(\;)(\:)(\')(\")(\,)(\.)(\/)(\<)(\>)(\?)]/); 4 return ( containSpecial.test(s) ); 5 }
身份证号校验：
function IdentityCodeValid(code) { var city={11:"北京",12:"天津",13:"河北",14:"山西",15:"内蒙古",21:"辽宁",22:"吉林",23:"黑龙江 ",31:"上海",32:"江苏",33:"浙江",34:"安徽",35:"福建",36:"江西",37:"山东",41:"河南",42:"湖北 ",43:"湖南",44:"广东",45:"广西",46:"海南",50:"重庆",51:"四川",52:"贵州",53:"云南",54:"西藏 ",61:"陕西",62:"甘肃",63:"青海",64:"宁夏",65:"新疆",71:"台湾",81:"香港",82:"澳门",91:"国外 "}; var tip = ""; var pass= true; if(!code || !/^\d{6}(18|19|20)?\d{2}(0[1-9]|1[12])(0[1-9]|[12]\d|3[01])\d{3}(\d|X)$/i.test(code)){ tip = "身份证号格式错误"; pass = false; } else if(!city[code.substr(0,2)]){ tip = "地址编码错误"; pass = false; } else{ //18位身份证需要验证最后一位校验位 if(code.length == 18){ code = code.split(''); //∑(ai×Wi)(mod 11) //加权因子 var factor = [ 7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2 ]; //校验位 var parity = [ 1, 0, 'X', 9, 8, 7, 6, 5, 4, 3, 2 ]; var sum = 0; var ai = 0; var wi = 0; for (var i = 0; i < 17; i++) { ai = code[i]; wi = factor[i]; sum += ai * wi; } var last = parity[sum % 11]; if(parity[sum % 11] != code[17]){ tip = "校验位错误"; pass =false; } } } return pass; }
手机号模式匹配：
1 /^1(3|4|5|7|8)\d{9}$/.test(mobile)
银行卡格式输入：
<input onkeyup="this.value=this.value.replace(/(\d{4})(?=[^\s])/,'$1 ');" type="number" maxlength="23" />
适配移动端视口：
<!--移动端视口--> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=no, minimal-ui"> <!--iphone允许全屏模式浏览--> <meta name="apple-mobile-web-app-capable" content="yes"> <meta content="yes" name="apple-touch-fullscreen"> <!--忽略电话号码识别--> <meta name="format-detection" content="telephone=no" /> <!--忽略邮箱识别--> <meta content="email=no" name="format-detection" /> <!--iphone中safari顶端的状态条的样式--> <meta name="apple-mobile-web-app-status-bar-style" content="black"> <!--禁止百度转码--> <meta http-equiv="Cache-Control" content="no-siteapp" /> <!--添加到主屏后的标题--> <meta name="apple-mobile-web-app-title" content="标题">
小功能代码先到这里，部分代码来源于网络，如有侵权，请告之删除。
