How do I convert this code to v14 ?

const discord = require('discord.js')
const client = new discord.Client({
    intents: [discord.Intents.FLAGS.GUILDS, discord.Intents.FLAGS.GUILD_MESSAGES] 
})
const fs = require('fs')

client.slashcommands = new discord.Collection()
const slashCommandFiles = fs.readdirSync('./slashcmd').filter(file => file.endsWith('.js'))

for (let file of slashCommandFiles) {
    const slash = require(`./slashcmd/${file}`)
    console.log(`Slash command - ${file} loaded!`)
    client.slashcommands.set(slash.data.name, slash)
}

client.on('ready', () => {
    
})

client.on('interactionCreate', async (interaction) => {
    if (!interaction.isCommand()) return

    const slashcmds = client.slashcommands.get(interaction.commandName)
    if (!slashcmds) return

    try {
        await slashcmds.run(client, interaction)
    } catch (e) {
        console.error(e)
    }
})

client.login('a')