how to make a purge command discord js

1var amount = parseInt(args[0])
2
3        if (!amount) return message.channel.send("Please specify the amount of messages you want me to delete")
4        if (amount > 100 || amount < 1) return message.channel.send("Please select a number *between* 100 and 1")
5
6        message.channel.bulkDelete(amount).catch(err => {
7              message.channel.send(':x: Due to Discord Limitations, I cannot delete messages older than 14 days') })
8
9        let msg = await message.channel.send(`Deleted \`${amount}\` messages`)
10        setTimeout(() => {
11            msg.delete()
12        }, 2000)

1case 'clear':
2            if(!args[1]) return message.reply ('Error, please define second argument')
3            message.channel.bulkDelete(args[1]);