问题描述
我的代码的让步部分产生了一个错误,我弄清楚了为什么机器人无法通过移动客户端来启动。登录到底部的新错误包括它只是发送无效的邮政编码。请遵循以下格式:_weather< ; #####>,即使您输入了邮政编码
The let part of my code is producing an error I figured out why the bot wouldn't start by moving the client.login to the bottom new error includes it just spamming "Invalid Zip Code. Please follow the format: _weather <#####>" even if you put in the zipcode
client.on("message", (message) => {
if (message.content.includes("_weather") && message.author.bot === false)
let zipCode = message.content.split(" ")[1];
if (zipCode === undefined || zipCode.length != 5 || parseInt(zipCode) === NaN) {
message.channel.send("`Invalid Zip Code. Please follow the format: _weather <#####>`")
.catch(console.error);
return;
} else {
fetch(`https://openweathermap.org/data/2.5/weather?zip=${zipCode},us&appid=439d4b804bc8187953eb36d2a8c26a02`)
.then(response => {
return response.json();
})
.then(parsedWeather => {
if (parsedWeather.cod === '404') {
message.channel.send("`This zip code does not exist or there is no information avaliable.`");
} else {
message.channel.send(`
The Current Weather
Location: ${parsedWeather.name}, ${parsedWeather.sys.country}
Forecast: ${parsedWeather.weather[0].main}
Current Temperature: ${(Math.round(((parsedWeather.main.temp - 273.15) * 9 / 5 + 32)))}° F
High Temperature: ${(Math.round(((parsedWeather.main.temp_max - 273.15) * 9 / 5 + 32)))}° F
Low Temperature: ${(Math.round(((parsedWeather.main.temp_min - 273.15) * 9 / 5 + 32)))}° F
`);
}
});
}
});
client.login('token');
推荐答案
您不能使用词法声明(<$ c像 if
, const
和 let
) > else , for
等,无障碍( {}
)。改用此方法:
You can't use lexical declarations (const
and let
) after statements like if
, else
, for
etc. without a block ({}
). Use this instead:
client.on("message", (message) => {
// declares the zipCode up here first
let zipCode
if (message.content.includes("_weather") && message.author.bot === false)
zipCode = message.content.split(" ")[1];
// rest of code
});
编辑第二个问题
您需要检查消息是否是由漫游器发送的,以便它将忽略它们发送的所有消息,包括无效的邮政编码消息:
Edit for 2nd question
You need to check if the message was sent by a bot so that it will ignore all messages sent by them, including the 'Invalid Zip Code' message:
client.on("message", (message) => {
if (!message.author.bot) return;
// rest of code
});
否则,无效邮政编码消息将触发漫游器发送另一个无效邮政编码
Without that, the 'Invalid Zip Code' message would trigger the bot to send another 'Invalid Zip Code' message as 'Invalid Zip Code' is obviously not a valid zip code.
同样,更改 parseInt(zipCode)=== NaN
到 Number.isNaN(parseInt(zipCode))
。 NaN === NaN
在JS中由于某种原因是 false
,因此您需要使用。您还可以只执行 isNaN(zipCode)
,因为将其输入强制为数字,然后检查其是否为 NaN
。
Also, change parseInt(zipCode) === NaN
to Number.isNaN(parseInt(zipCode))
. NaN === NaN
is false
for some reason in JS, so you need to use Number.isNaN
. You could also just do isNaN(zipCode)
because isNaN
coerces its input to a number and then checks if it's NaN
.
console.log(`0 === NaN: ${0 === NaN}`)
console.log(`'abc' === NaN: ${'abc' === NaN}`)
console.log(`NaN === NaN: ${NaN === NaN}`)
console.log('')
console.log(`isNaN(0): ${isNaN(0)}`)
console.log(`isNaN('abc'): ${isNaN('abc')}`)
console.log(`isNaN(NaN): ${isNaN(NaN)}`)
console.log('')
console.log(`Number.isNaN(0): ${Number.isNaN(0)}`)
console.log(`Number.isNaN('abc'): ${Number.isNaN('abc')}`)
console.log(`Number.isNaN(NaN): ${Number.isNaN(NaN)}`)
尝试以下代码:
client.on("message", (message) => {
if (message.content.includes("_weather") && !message.author.bot) {
let zipCode = message.content.split(" ")[1];
if (zipCode === undefined || zipCode.length != 5 || Number.isNaN(parseInt(zipCode))) {
message.channel.send("`Invalid Zip Code. Please follow the format: _weather <#####>`")
.catch(console.error);
return;
} else {
fetch(`https://openweathermap.org/data/2.5/weather?zip=${zipCode},us&appid=439d4b804bc8187953eb36d2a8c26a02`)
.then(response => {
return response.json();
})
.then(parsedWeather => {
if (parsedWeather.cod === '404') {
message.channel.send("`This zip code does not exist or there is no information avaliable.`");
} else {
message.channel.send(`
The Current Weather
Location: ${parsedWeather.name}, ${parsedWeather.sys.country}
Forecast: ${parsedWeather.weather[0].main}
Current Temperature: ${(Math.round(((parsedWeather.main.temp - 273.15) * 9 / 5 + 32)))}° F
High Temperature: ${(Math.round(((parsedWeather.main.temp_max - 273.15) * 9 / 5 + 32)))}° F
Low Temperature: ${(Math.round(((parsedWeather.main.temp_min - 273.15) * 9 / 5 + 32)))}° F
`);
}
});
}
}
})
编辑3
Edit 3
if (message.content.startsWith("_weather") && !message.author.bot)
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