How do you differentiate between a `User` and a `GuildMember` in discord.js?

Differentiating Between User and GuildMember in discord.js

Problem:

Confusion arises when distinguishing between User and GuildMember objects in discord.js. This leads to errors such as mismatched methods and undefined properties.

Answer:

According to the Discord.js guide:

• A User represents a global Discord user.
• A GuildMember represents a Discord user on a specific server.

Only GuildMembers can have server-specific attributes like roles, permissions, and nicknames.

Common Mistakes and Workarounds:

• Errors occur when attempting to use server-specific methods on global User objects.
• MessageMentions.users returns a collection of Users, which lack server-specific functions.

• To obtain a GuildMember, use:

  • MessageMentions.members: Returns a collection of GuildMembers.
  • Guild.member(): Converts a User object to a GuildMember.
• GuildMember.user provides access to the global User object, enabling retrieval of global user properties.

Additional Tips:

• Beware of events that pass Users or GuildMembers as parameters, such as:

  • GuildMember for guildMemberAdd() and guildMemberUpdate().
  • User for messageReactionAdd(), guildBanAdd(), and typingStart().
• Convert a GuildMember to a User using GuildMember.user.

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