client.on('messageCreate', async (message) => {
    if(message.author.id == client.user.id) return;
    if(message.content.toUpperCase('CRAZY').includes('CRAZY')){
        
        message.reply("Crazy? I Was Crazy Once. They Locked Me In A Room. A Rubber Room. A Rubber Room With Rats. And Rats Make Me Crazy.")
}});

client.on('messageCreate', async (message) => {
    if(message.author.id == client.user.id) return;
    if(message.content.toUpperCase('CRAZY').includes('CRAZY')){
        
        message.reply("Crazy? I Was Crazy Once. They Locked Me In A Room. A Rubber Room. A Rubber Room With Rats. And Rats Make Me Crazy.")
}});

client.on('messageCreate', async message => {
    const prefix = "!"; //You can replace the ! with your prefix
    const args = message.content.slice(prefix.length).split(/ +/);
    const command = args.shift().toLowerCase();
    if(message.content.toLowerCase().startsWith(prefix))
      {
        if(command === "Command_name_01" || command === "Command_alias_02" || command === "Command_alias_03"/*etc...*/){

                  //Command code here                  

        }
    }
});

client.on('messageCreate', async message => {
    const prefix = "!"; //You can replace the ! with your prefix
    const args = message.content.slice(prefix.length).split(/ +/);
    const command = args.shift().toLowerCase();
    if(message.content.toLowerCase().startsWith(prefix))
      {
        if(command === "Command_name_01" || command === "Command_alias_02" || command === "Command_alias_03"/*etc...*/){

                  //Command code here                  

        }
    }
});