AngularJs 常用函数

/**
 * [intersect 取两个数组的交集]
 var firstArray = [1,3,5];
 var secondArray = [2,5,8];
 var result
 */
.filter('intersect', function () {
    return function (arr1, arr2) {
        var temp = [];
        for (var i = 0; i < arr1.length; i++) {
            for (var k = 0; k < arr2.length; k++) {
                if (arr1[i] == arr2[k]) {
                    temp.push(arr1[i]);
                    break;
                }
            }
        }
        return temp;
    }
})
/**
 * [guidGenerator 生成GUID]
 */
.factory("guidGenerator", function () {
        var generatePart = function () {
            var guidPartNumber = (Math.random() * 0x10000) | 0;
            return (guidPartNumber + 0x10000).toString(16).substring(1).toUpperCase();
        };
        return function () {
            return generatePart()
                + generatePart()
                + "-"
                + generatePart()
                + "-"
                + generatePart()
                + "-"
                + generatePart()
                + "-"
                + generatePart()
                + generatePart()
                + generatePart();
    }
})
/**
 * [CryptoJS 加密解密]
 */
 .factory('crypto',[function(){
       var aesKey; //for AES encryption/decryption
         // encrypt data though AES, with aesKey
        function encrypt(data) {
            if (aesKey == null) {
                throw "AES key not initialized"
            }
            data = CryptoJS.AES.encrypt(data, aesKey).toString();
            return data;
        }
        // decrypt data though AES, with aesKey
        function decrypt(hash) {
            if (aesKey == null) {
                throw "AES key not initialized"
            }
            hash = CryptoJS.AES.decrypt(hash, aesKey).toString(CryptoJS.enc.Utf8);
            return hash;
        }
 }])
/**
 * [LocalStorage 本地存储服务]
 */
 // the storage persisting layer
 .factory('storage', [function () {
        return {
            save: function (key, value) {
                window.localStorage.setItem(key, value);
            },
            load: function (key) {
                return window.localStorage.getItem(key);
            }
        }
    }])