返回Node.js

Question

我们假设我们在Node.js中有一个函数，返回两个参数的正确方法是什么？

例如，我有一个函数，它返回一个加密的消息，就像上面的代码一样，我也想返回它将被重现的Hmac哈希。我可以从一个函数返回两个值吗？

const crypto = require('crypto');
exports.AesEncryption = function(Plaintext, SecurePassword) {
    var cipher = crypto.createCipher('aes-128-ecb', SecurePassword);
    var encrypted = cipher.update(Plaintext, 'utf-8', 'base64');
    encrypted += cipher.final('base64');
    return encrypted;
};

Answer 1

只需使用数组即可返回两个值：

const crypto = require('crypto');
exports.AesEncryption = function(Plaintext, SecurePassword) {
    var cipher = crypto.createCipher('aes-128-ecb', SecurePassword);
    var encrypted = cipher.update(Plaintext, 'utf-8', 'base64');
    encrypted += cipher.final('base64');
    return [encrypted, cipher];
};

或对象（首选）：

const crypto = require('crypto');
exports.AesEncryption = function(Plaintext, SecurePassword) {
    var cipher = crypto.createCipher('aes-128-ecb', SecurePassword);
    var encrypted = cipher.update(Plaintext, 'utf-8', 'base64');
    encrypted += cipher.final('base64');
    return {encrypted: encrypted, cipher: cipher};
};