js操作cookie
var Cookie = { setCookie: function(key, value, expiredays) { expiredays = expiredays || 30; //默认30天 var exdate = new Date(); exdate.setDate(exdate.getDate() + expiredays); document.cookie = key + "=" + escape(value) + ((expiredays == null) ? "" : ";expires=" + exdate.toGMTString()); }, getCookie: function(key) { var arr, reg = new RegExp("(^| )" + key + "=([^;]*)(;|$)"); return (arr = document.cookie.match(reg)) ? unescape(arr[2]) : null; }, removeCookie: function(key) { var exp = new Date(); exp.setTime(exp.getTime() - 1); var cval = this.getCookie(key); if(cval != null) document.cookie = key + "=" + cval + ";expires=" + exp.toGMTString(); } }; Cookie.setCookie('name', 'staven'); Cookie.removeCookie('name'); Cookie.getCookie('name'); </code> 使用localstorage存储数据
<code> var LocalStorage = { getLs: function(str) { var msgArr = localStorage.getItem(str); return !msgArr ? msgArr = [] : msgArr = msgArr.split(','); }, /** * * @param {String} key 键值 * @param {String} str 须存入的内容，若存入多个用"/"隔开 * @param {Number} num 最大存入的条数 */ setLs: function(key, str, num) { var msgArr = this.getLs(key); num = num || 10; str = str || ''; if(str.indexOf("/") == -1 && msgArr.indexOf(str) == -1){ msgArr.unshift(str); }else{ var list = str.split('/'); for(var i=0,len=list.length; i<len; i++){ if(!!list[i] && msgArr.indexOf(list[i]) == -1){ msgArr.unshift(list[i]); if(msgArr.length == num+1) return; } } } if(msgArr.length == num+1) { msgArr.pop(); } msgArr = msgArr.join(','); localStorage.setItem(key, msgArr); }, removeLs: function(str) { localStorage.removeItem(str); }, clearLs: function(str) { localStorage.clear(); } }; LocalStorage.setLs('name',"staven", 10); //LocalStorage.setLs('name',"1/2/3/4/5/6", 8); console.log(LocalStorage.getLs('name')); //LocalStorage.removeLs('name');
