如何修复ReferenceError

Question

After some modification, instead of message is not defined, it is receivedMessage.channel.bulkdelete(args[0].then (() => { ReferenceError: receivedmessage is not defined. I am not really sure myself what does that mean because im new to node.js and javascript. If there is any mistakes I made please tell me!

client.on('message', (receivedMessage) => {
    if (receivedMessage.author == client.user) { // Prevent bot from responding to its own messages
        return
    }

    if (receivedMessage.content.startsWith("?")) {
        processCommand(receivedMessage)
    }
})

function processCommand(receivedMessage) {
    let fullCommand = receivedMessage.content.substr(1) // Remove the leading exclamation mark
    let splitCommand = fullCommand.split(" ") // Split the message up in to pieces for each space
    let primaryCommand = splitCommand[0] // The first word directly after the exclamation is the command
    let arguments = splitCommand.slice(1) // All other words are arguments/parameters/options for the command

    console.log("Command received: " + primaryCommand)
    console.log("Arguments: " + arguments) // There may not be any arguments

if (primaryCommand == "help") {
    helpCommand(arguments, receivedMessage)
} else if (primaryCommand == "multiply") {
    multiplyCommand(arguments, receivedMessage)
} else if(primaryCommand == "clear") {
    clearCommand(arguments, receivedMessage)
} else {
    receivedMessage.channel.send("I don't understand the command. Try `?help`, `?multiply` or '?clear'")
}

function helpCommand(arguments, receivedMessage) {
    if (arguments.length > 0) {
        receivedMessage.channel.send("It looks like you might need help with " + arguments + ".Try `!multiply 2 4 10` or `!multiply 5.2 7`")
    } else {
        receivedMessage.channel.send("I'm not sure what you need help with. Try `?help [topic]`")
    }
}

function multiplyCommand(arguments, receivedMessage) {
    if (arguments.length < 2) {
        receivedMessage.channel.send("Not enough values to multiply. Try `!multiply 2 4 10` or `!multiply 5.2 7`")
        return
    }
    let product = 1 
    arguments.forEach((value) => {
        product = product * parseFloat(value)
    })
    receivedMessage.channel.send("The product of " + arguments + " multiplied together is: " + product.toString())
    }
}

function clearCommand (arguments, receivedMessage) {
    if (!recievedMessage.member.hasPermission("MANAGE_MESSAGES")) 
        return receivedmessage.reply("You have no permission to use this command.Sad."); 
    if (!args[0]) 
        return receivedMessage.channel.send("Please specify a number.")
}
        receivedmessage.channel.bulkDelete(args[0]).then(() => {
        receivedMessage.channel.send(`Cleared ${args[0]} messages.`).then(msg => msg.delete(5000));
    }
,)

Answer 1

You need to use receivedMessasge instead of message , as thats the name you choose in that function.

It kinda seems like you dont really have much experience and I would recommend you to read the offical discord.js guide: https://discordjs.guide . It will teach you how to write Discord Bots without needing to copy a lot of weired stuff into your Code!

Answer 2

1) You have defined receivedMessage instead of messsage

2) The code for clear command is not in any function and it executes once, before any messages.

You need to use receivedMessage instead of message and insert the code in the processCommand function

if (primaryCommand == "help") {
    helpCommand(arguments, receivedMessage)
} else if (primaryCommand == "multiply") {
    multiplyCommand(arguments, receivedMessage)
} else if(primaryCommand == "clear") {
    if (!message.member.hasPermission("MANAGE_MESSAGES")) return message.reply("You have no permission to use this command.Sad."); 
    if (!args[0]) return message.channel.send("Please specify a number.")
    message.channel.bulkDelete(args[0]).then(() => {
        message.channel.send(`Cleared ${args[0]} messages.`).then(msg => msg.delete(5000));
    });
    // or create a function for this command
} else {
    receivedMessage.channel.send("I don't understand the command. Try `?help` or `?multiply`")
}