Updated Mongoose Update Nested Array Element

I have the following Schema UserSchema: Schema = new Schema({ username: String, password: String, chat: [{ lastSeen: { type: Date, default: Date.now }, room: {

Solution 1:

I'm posting the solution in case someone needs it.

UserSchema.statics.lastSeen = 
function lastSeen(username: string, roomId: number, date: Date) {
    this.update({
      username: username,
      'chat.room': roomId
    }, { $set: { 'chat.$.lastSeen': date }})
    .exec();
};