cookie-localstorage.js

var docCookies = {
      getItem: function (sKey) {
        if (!sKey) { return null; }
        return decodeURIComponent(document.cookie.replace(new RegExp("(?:(?:^|.*;)\\s*" + encodeURIComponent(sKey).replace(/[\-\.\+\*]/g, "\\$&") + "\\s*\\=\\s*([^;]*).*$)|^.*$"), "$1")) || null;
      },
      setItem: function (sKey, sValue, vEnd, sPath, sDomain, bSecure) {
        if (!sKey || /^(?:expires|max\-age|path|domain|secure)$/i.test(sKey)) { return false; }
        var sExpires = "";
        if (vEnd) {
          switch (vEnd.constructor) {
            case Number:
              sExpires = vEnd === Infinity ? "; expires=Fri, 31 Dec 9999 23:59:59 GMT" : "; max-age=" + vEnd;
              break;
            case String:
              sExpires = "; expires=" + vEnd;
              break;
            case Date:
              sExpires = "; expires=" + vEnd.toUTCString();
              break;
          }
        }
        document.cookie = encodeURIComponent(sKey) + "=" + encodeURIComponent(sValue) + sExpires + (sDomain ? "; domain=" + sDomain : "") + (sPath ? "; path=" + sPath : "") + (bSecure ? "; secure" : "");
        return true;
      },
      removeItem: function (sKey, sPath, sDomain) {
        if (!this.hasItem(sKey)) { return false; }
        document.cookie = encodeURIComponent(sKey) + "=; expires=Thu, 01 Jan 1970 00:00:00 GMT" + (sDomain ? "; domain=" + sDomain : "") + (sPath ? "; path=" + sPath : "");
        return true;
      },
      hasItem: function (sKey) {
        if (!sKey) { return false; }
        return (new RegExp("(?:^|;\\s*)" + encodeURIComponent(sKey).replace(/[\-\.\+\*]/g, "\\$&") + "\\s*\\=")).test(document.cookie);
      },
      keys: function () {
        var aKeys = document.cookie.replace(/((?:^|\s*;)[^\=]+)(?=;|$)|^\s*|\s*(?:\=[^;]*)?(?:\1|$)/g, "").split(/\s*(?:\=[^;]*)?;\s*/);
        for (var nLen = aKeys.length, nIdx = 0; nIdx < nLen; nIdx++) { aKeys[nIdx] = decodeURIComponent(aKeys[nIdx]); }
        return aKeys;
      }
    };


;(function(){

  var xbm = window.xbm || {};
  window.xbm = xbm;

  /**
   * 小斑马 localStorage 辅助方法
   * @author github.com/lgh06
   * @date   2016-03-09T10:54:13+0800
   * @param  {String}                 key  [键名]
   * @param  {String}                 item [值]
   */
  xbm.set = function (key,item){
    window.localStorage ? window.localStorage.setItem(key,JSON.stringify(item)) : 0;
  }

  xbm.get = function (key){
    return window.localStorage ? JSON.parse( window.localStorage.getItem(key) ) : '';
  }

  xbm.del = function (key){
    window.localStorage ? window.localStorage.removeItem(key) : 0;
  }

  xbm.clear = function(not){
    if(typeof not === 'string' || typeof not === 'undefined'){
      window.localStorage 
      ?
      Object.keys(window.localStorage).forEach(function(v,i,a){
        if( v !== not){
          xbm.del(v);
        }
      })
      :
      0 ;
    }
    if( typeof not == 'object' && not.length > 0 ){
      var localArr = Object.keys(window.localStorage);

      localArr.forEach(function(v,i,a){
        not.forEach(function(vv,ii,aa){
          if(vv == v){
            delete localArr[i]
          }
        });
      })

      localArr.forEach(function(v,i,a){
        xbm.del(v);
      });
    }
  }

  xbm.getCookie = function (key){
    var length = key.length;//键名长度
    var fromIndex = document.cookie.indexOf(key+'=');//起始index
    var endIndex = document.cookie.indexOf(';',fromIndex);//结束index
    if(endIndex === -1) {endIndex = document.cookie.length;}//最后的cookie可能没有分号
    var str = document.cookie.substring(fromIndex,endIndex);
    return str.substring(length+1,str.length);//去除xxx＝ 只留下值
  }
  //显示一个消息，会在2秒钟后自动消失
  xbm.toast = function(msg, duration, extraclass,callback) {
      var $toast = $('<div class="modal toast ' + (extraclass || '') + '">' + msg + '</div>').appendTo(document.body);
      $.openModal($toast, function(){
          setTimeout(function() {
              $.closeModal($toast);
              if(typeof callback !== 'undefined'){
                callback();
              }
          }, duration || 2000);
      });
  };

})();