'Discord selfbot - answering on messages from everyone

I have Discord selfbot in node.js and I wanna make a bot answering to massages from other server members, for example, if someone type "hey" selfbot will send into DMs "I'm busy rn, sorry"

I have this code but it is not working, I did not get any error but it is not working :(

client.on('message', message => {
  if (message.content.startsWith('hey'))
    target.send('im afk')
})


Solution 1:[1]

client.on('message', message => {
  if (message.content.startsWith('idk'))
    message.channel.send("Im Afk");
})

The message has to start with 'idk' so that this is triggered.

Solution 2:[2]

client.on('message', message => {
    console.log('Message received: ' + message.content);
    if(message.content === 'hey') {
        message.author.send("Im busy rn, sorry!");
    }
});

Try outputting the console output to double check that the message content is actually received properly. Also try using message.content === '' (however this will only work if the whole message content is 'hey')

Solution 3:[3]

Actually you can do that

client.on('message', message => {
    if(message.content.startsWith('')) {
        message.channel.send("im AFK");
    }
});

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Ghonima
Solution 2
Solution 3 Sans