Discord TypeError: message.channel.isText is not a function

Question

I've a Discord bot where I'm checking if a channel is a text channel. The following code worked until today, but now it throws an error.

if (message.channel.isText()) { ... }

Error:

  if (message.channel.isText())
                      ^
TypeError: message.channel.isText is not a function

I also tried it with message.channel.type === 'GUILD_TEXT' but it always returns false, even if the channel is a text channel.

Answer 1

In discordjs v14, channel#isText(), channel#isVoice(), channel#isDM(), etc. are not available any more. You should use the ChannelType enums instead.

If you want to check if a channel is a TextChannel, you can use the following:

const { ChannelType, Client } = require('discord.js');
// ..
if (message.channel.type === ChannelType.GuildText)

Also, channel.type is no longer a string but a number. For example, channel.type for a TextChannel returns 0, that's why channel.type === 'GUILD_TEXT' no longer works for you.

Here is a list of channel types in v14:

channel type	v12	v13	v14	v14 type()
guild text channel	text	GUILD_TEXT	GuildText	0
DM channel	dm	DM	DM	1
guild voice channel	voice	GUILD_VOICE	GuildVoice	2
group DM channel	N/A	GROUP_DM	GroupDM	3
guild category channel	category	GUILD_CATEGORY	GuildCategory	4
guild news channel	news	GUILD_NEWS	GuildNews	5
guild news channel's public thread channel	N/A	GUILD_NEWS_THREAD	GuildNewsThread	10
guild text channel's public thread channel	N/A	GUILD_PUBLIC_THREAD	GuildPublicThread	11
guild text channel's private thread channel	N/A	GUILD_PRIVATE_THREAD	GuildPrivateThread	12
guild stage voice channel	N/A	GUILD_STAGE_VOICE	GuildStageVoice	13
guild store channel	store	GUILD_STORE	N/A	N/A
generic channel of unknown type	unknown	UNKNOWN	N/A	N/A

Answer 2

Discord.js’ BaseChannel class doesn’t have an isText() method, at least not according to its latest API docs.

Is it possible you meant to use isTextBased() method instead?

if (message.channel.isTextBased()) { /* … */ }