crypto-js模块已导入，但无法按预期工作

Question

I work on a project wich use typescript and es6 syntax. I have installed the module crypto-js npm install crypto-js and his typescript type npm install @types/crypto-js .

I import it then into my file like this :`

import * as CryptoJS from 'crypto-js';

But when i tried to use it like in the documentation :

console.log(CryptoJS.MD5('my message'));

It show me an Object structure instead of an unreadable string :

WordArray.init {words: Array(4), sigBytes: 16}
sigBytes: 16
words: Array(4)
    0: -1952005731
    1: -1042352784
    2: 804629695
    3: 720283050
    length: 4
__proto__: Array(0)
__proto__: Object

What am I forgetting?

Answer 1

In your code, you reference the output from calling the MD5 function which, when passed to typeof returns its type as 'object'.

Though it seems poorly documented, you can reach the string representation of the MD5 value using:

console.log(CryptoJS.MD5('my message').toString())

which produces: "8ba6c19dc1def5702ff5acbf2aeea5aa"

If you plan to run your code using NodeJS, you might consider its native crypto module rather than crypto-js .

const crypto = require('crypto')
const h = crypto.createHash('md5')
h.update('my message')
console.log(h.digest('hex'))

which also prints: "8ba6c19dc1def5702ff5acbf2aeea5aa"

The benefit of using NodeJS' native crypto module here is that, like all native modules, it is bundled into the NodeJS runtime and so doesn't need to be loaded in from an external module.