Discord.js错误，而从另一个javascript中选择随机对象

Question

这是我的代码：

// index.js:

const Discord = require('discord.js');
const bot = new Discord.Client ();
const names = require('./names');

bot.on('message', message => {
    if(message.content.toLowerCase() === '!randomname'){
        const embed0 = new Discord.RichEmbed()
            .setColor('#ba0f0f')
            .setDescription("This is your random name: " + names.namelist[Math.floor(Math.random() * names.namelist.length)])
        message.channel.send(embed0);
    }
});

// names.js:

const namelist = [
'Oscar',
'John',
'Emma',
]

这是错误：无法读取未定义的属性[length] （ ... names.namelist [Math.floor（Math.random（）* names.namelist。length）]））< []

Answer 1

您需要导出数组：

// array.js
const array = [
  1,
  2,
  3
];

module.exports = array;

// main.js
const array = require('./array');

console.log(array.length);