Discord.js v13 [EMBED_FIELD_VALUE]: MessageEmbed 字段值必须是非空字符串

Question

    const key = `${message.guild.id}|${message.channel.id}|${message.id}`;

    if (MESSAGE_CACHE.has(key)) {
      const cachedMessage = MESSAGE_CACHE.get(key);
      const logChannel = message.guild.channels.cache.get(settings.log_channel);
      if (!logChannel) return;

      const embed = new MessageEmbed()
        .setAuthor("Ghost ping detected")
        .setDescription(
          `**Message**:
        ${cachedMessage.content}
        
        **Author:** ${cachedMessage.author.tag} \`${cachedMessage.author.id}\`
        **Channel:** <#${cachedMessage.channelId}>
        `
        )
        .addField("Members", cachedMessage.mentions.members, true)
        .addField("Roles", cachedMessage.mentions.roles, true)
        .addField("Everyone?", cachedMessage.mentions.everyone, true)
        .setFooter("Sent at: " + cachedMessage.createdAt);

      sendMessage(logChannel, { embeds: [embed] });
    }

如果我删除了一条带有 ghost ping 的消息，它 returns 错误 Unhandled Rejection at: RangeError [EMBED_FIELD_VALUE]: MessageEmbed field values must be non-empty strings. 知道为什么会发生这种情况，因为字段具有值

Answer 1

关于.addField创建错误，为了防止这个错误，

.addField("Members", `${cachedMessage.mentions.members || "Your word"}`, true)
.addField("Roles", `${cachedMessage.mentions.roles || "Your word"}`, true)
.addField("Everyone?", `${cachedMessage.mentions.everyone || "Your word"}`, true)
.setFooter("Sent at: " + cachedMessage.createdAt);

说明： 如果您的机器人没有收到任何对某人执行 ping 操作的成员，它不会抛出错误，而是会发送 string

Answer 2

你放在那里的所有值都不是字符串，所以它会抛出那个错误。另外注意，.mentions.members和.mentions.roles是Collection，不是数组，所以需要转换

.addField("Members", `${Array.from(cachedMessage.mentions.members.values()).join(", ") || "None"}`, true)
.addField("Roles", `${Array.from(cachedMessage.mentions.roles.values()).join(", ") || "None"}`, true)
.addField("Everyone?", `${cachedMessage.mentions.everyone}`, true)
.setFooter("Sent at: " + `${cachedMessage.createdAt}`);

Discord.js v13 [EMBED_FIELD_VALUE]: MessageEmbed 字段值必须是非空字符串

Discord.js v13 [EMBED_FIELD_VALUE]: MessageEmbed field values must be non-empty strings

javascript

discord.js