Difference Between Users and GuildMembers in Discord.js

Discord.js distinguishes between Users and GuildMembers, representing different aspects of Discord users.

Users vs. GuildMembers

• Users: Global Discord users, independent of any specific server.
• GuildMembers: Discord users within a specific guild, with server-bound attributes like roles, permissions, and nicknames.

Code Errors and Causes

Errors can arise from using guild-specific functions on global users, such as:

• user.kick(): GuildMember function called on a User (returned by message.mentions.users)
• message.author.hasPermission(): GuildMember function called on a User (returned by message.author)

Solutions and Workarounds

Converting Users to GuildMembers:

• message.mentions.members instead of message.mentions.users (preferred)
• guild.member() accepts both User objects and IDs
• message.member instead of message.author
• guild.members.cache.get() instead of client.users.cache.get()
• guild.members.fetch() instead of client.users.fetch()
• presence.member instead of presence.user

Converting GuildMembers to Users:

• GuildMember.user property represents the global Discord user