Answers for "how to get channel from id discord js"

Find channel discord js

// Insert the Channel ID in the brackets. TO find that, right click the
// channel and select "Copy ID". Discord Developer must be on.
let channel = message.guild.channels.cache.get(channelid)

discord.js create channel and get id

guild.channels.create('Channel Tempo', { type: 'category' }).then(result => {
console.log('Here is channel id', result.id)
//Logs he channel id
//from https://stackoverflow.com/questions/61197547/get-id-after-discord-js-channel-creation