Discord.js v12 Covid Stats 命令

Question

所以基本上我有一个 covid 命令，它可以显示统计数据并且可以完美运行。尽管如此。 每当您说一些不是真实文本的内容时，例如“covid ejdetj”，它都会不停地给出错误。 我来到这里是因为我不知道如何捕捉错误，所以如果有人说“covid kfgk”，它会发回一条消息“不能这样做”，代码如下。

client.on('message', async message =>{
  if(message.content.toLowerCase() === prefix + "covid all") {
    const coronaEmbed = new Discord.MessageEmbed()
    const data = await api.all()
    coronaEmbed.setColor('#00B2B2')
    .setTitle("🌐 Global Cases")
    .setDescription("Number of cases may differ from other sources")
    .addField("Cases", data.cases, true)
    .addField("Active", data.active, true)
    .addField("Cases Today", data.todayCases, true)
    .addField("Critical Cases", data.critical, true)
    .addField("Deaths", data.deaths, true)
    .addField("Recovered", data.recovered, true)
    .setFooter(`Requested by ${message.author.tag}`, message.author.displayAvatarURL())
    .setTimestamp()
    message.channel.send(coronaEmbed);
    
  } else if(message.content.toLowerCase().startsWith(prefix + "covid") && message.content.toLowerCase() !== prefix + "covid all") {
    const countrycovid = message.content.slice(prefix.length).split(' ')
    const countrydata = await api.countries({country: countrycovid})
    const countryEmbed = new Discord.MessageEmbed()
    .setColor('#00B2B2')
    .setTitle(`${countrycovid[1]} cases`).setThumbnail(countrydata.countryInfo.flag)
    .setDescription("Number of cases may differ from other sources")
    .addField("Cases", countrydata.cases, true)
    .addField("Active", countrydata.active, true)
    .addField("Cases Today", countrydata.todayCases, true)
    .addField("Critical Cases", countrydata.critical, true)
    .addField("Deaths", countrydata.deaths, true)
    .addField("Recovered", countrydata.recovered, true)
    .setFooter(`Requested by ${message.author.tag}`, message.author.displayAvatarURL())
    .setTimestamp()
    message.channel.send(countryEmbed);
} else {
  if(message.content.toLowerCase() === prefix + "help covid all") {
    const newEmbed = new Discord.MessageEmbed()
    .setColor('#00B2B2')
    .setTitle('**Covid All Help**')
    newEmbed.setDescription('This command sends you an executor of the global corona stats.')
    .setFooter(`Requested by ${message.author.tag}`, message.author.displayAvatarURL())
    .setTimestamp();
    message.channel.send(newEmbed);
  
} else {
  if(message.content.toLowerCase() === prefix + "help covid country") {
    const newEmbed = new Discord.MessageEmbed()
    .setColor('#00B2B2')
    .setTitle('**Covid Country Help**')
    newEmbed.setDescription('This command sends you an executor of the corona stats in countries around the world.')
    .setFooter(`Requested by ${message.author.tag}`, message.author.displayAvatarURL())
    .setTimestamp();
    message.channel.send(newEmbed)
  }
}}})

Answer 1

在const countrydata = await api.countries({country: countrycovid})上使用 trycatch 语句！

它看起来像这样：

try {
  const countrydata = await api.countries({country: countrycovid})
} catch (err) {
  message.reply("Can't do this");
};