angular-localstorage

angular.module('sLocalStorage', []).factory('sLocalStorage', function () {
    var _ = window._;
    var _storage = {
        _prefix: 'prefix_',
        _debug: true,
        check: function () {
            return _.isUndefined(localStorage) ? false : true;
        },
        get: function (key) {
            if (!this.check()) return;
            return this.onGet(localStorage.getItem(this._key(key)));
        },
        getAll: function () {
            if (!this.check()) return ({});

            var self = this;
            var items = _.map(_.keys(localStorage), function (key) {
                return self.get(key);
            });

            return items;
        },
        set: function (key, value) {
            if (!this.check()) return;
            try {
                this.remove(key);
                localStorage.setItem(this._key(key), this.onSet(value));
                return true;
            } catch (e) {
                return false;
            }
        },
        remove: function (key) {
            if (!this.check()) return;
            localStorage.removeItem(this._key(key));
        },
        removeByKeyContains: function (key) {
            if (!this.check()) return;

            _.each(_.keys(localStorage), function (e) {
                e.indexOf(key) >= 0 && this.remove(e);
            }, this);
        },
        clear: function () {
            if (!this.check()) return;
            localStorage.clear();
        },
        onSet: function (value) {
            return _.isFunction(value) ? null : _.isObject(value) || _.isArray(value) ? JSON.stringify(value) : value;
        },
        onGet: function (value) {
            try {
                value = JSON.parse(value)
            } catch (e) {
                if (this._debug) {
                    console.error(e);
                }
            }
            return value;
        },
        _key: function (key) {
            return this._prefix + (_.isArray(key) || _.isObject(key) ? key.join(".") : key);
        }
    };

    return _storage;
});