Discord Bot 嵌入变量以未定义的形式返回

Posted 2023-03-14

【中文标题】Discord Bot 嵌入变量以未定义的形式返回

【英文标题】：Discord Bot Embed Variables come back as undefined

【发布时间】：2019-04-10 13:10:03

【问题描述】：

这是我的代码，值一直未定义 https://cdn.discordapp.com/attachments/501784044649054231/509529437419732994/unknown.png

这段代码应该是

!rebirth 1 1 1 

它应该在嵌入中回复

集体现金 1 生命币 1 代币 1

exports.run = (_client, message, args) => 
let Cash = args[0]; // Remember arrays are 0-based!.
let Tokens = args[1];
let LifeCoins = args[2];
const Discord = require('discord.js')

var embed = new Discord.RichEmbed()
    .setTitle("Rebirth")
    .setAuthor("Author Name", `$message.author.avatarURL`)
    .setTimestamp()
    .addField("Collective Cash", `$Cash`)
    .addField("Lifecoins", `$LifeCoins`)
    .addField("Tokens", `$Tokens`)
    .addBlankField(true)

message.channel.send(
    embed
)

【参考方案1】：

exports.run = (_client, message, args) => 
    let rest_of_the_string = message.content.slice('embed'.length); //removes the first part
    let array_of_arguments = rest_of_the_string.split(' '); //[Cash LifeCoints Tokens]
    const Discord = require('discord.js')

    var embed = new Discord.RichEmbed()
        .setTitle("Rebirth")
        .setAuthor("Author Name", `$message.author.avatarURL`)
        .setTimestamp()
        .addField("Collective Cash", array_of_arguments[0])
        .addField("Lifecoins", array_of_arguments[1])
        .addField("Tokens", array_of_arguments[2])
        .addBlankField(true)

    message.channel.send(
        embed
    )
    

试试看

【参考方案2】：

2 个问题：

第一个问题是最后一行：

message.channel.send(embed);

在 JS 中， embed 与 embed:undefined 相同，因为您没有指定任何值。

在 discord.js 中，只需执行 message.channel.send(embed) 即可。

第二个问题：

你在变量中使用了对象解构， 在您的代码中：

let Cash = args[0]; // Remember arrays are 0-based!.
let Tokens = args[1];
let LifeCoins = args[2];

等于

let Cash = args[0].Cash; // Remember arrays are 0-based!.
let Tokens = args[1].Tokens;
let LifeCoins = args[2].LifeCoins;

显然返回未定义（没有“现金”属性）

相反，您应该这样做：

let Cash = args[0]; // Remember arrays are 0-based!.
let Tokens = args[1];
let LifeCoins = args[2];

代码现在应该如下所示：

exports.run = (_client, message, args) => 
let Cash = args[0]; // Remember arrays are 0-based!.
let Tokens = args[1];
let LifeCoins = args[2];
const Discord = require('discord.js')

var embed = new Discord.RichEmbed()
    .setTitle("Rebirth")
    .setAuthor("Author Name", `$message.author.avatarURL`)
    .setTimestamp()
    .addField("Collective Cash", `$Cash`)
    .addField("Lifecoins", `$LifeCoins`)
    .addField("Tokens", `$Tokens`)
    .addBlankField(true)

message.channel.send(embed)