Added in 1.5

/join [-inx] <#channel> [password]

Joins a channel.

Switches

-i - Join the channel to which you were last invited.
-n - Minimizes the channel to join.
-x - Maximizes the channel to join.

Parameters

<#channel> - Channel to join.
[password] - Channel password if any.

Examples

;Join channel #channel.
/join #channel

;Join multiple channels.
/join #channel,#channel2 password,#channel3