能否实现js中的const加密

Question

const num = "123",
我想实现给num后面的123进行加密 但是能正常读取 可以实现吗

Answer 1

const num = "123";
        const str64 = window.btoa(num);
        console.log("字符串是:"+num);
        console.log("经base64编码后:"+str64);
        console.log("base64解码后:"+window.atob(str64));