在 Discord.js 中获取带有用户 ID 的用户名 TypeError：无法读取未定义的属性“标签”

Question

I currently have a leaderboard set up, but I'm trying to get the username of top 10 users in a server, but I'm having trouble converting a user ID to the username.

Firstly, I use a for loop to loop through each user within my database:

for(let userID of Object.keys(userdata[message.guild.id].users)){

My JSON file looks something like this:

"83xxxxxxxxxx90": { //server ID
        "users": {
            "24xxxxxxxxxxxx64": { //user ID
                "count": [
                    16,
                    5,
                    2,
                    10,
                    10
                ],
                "username": "username#0001"
            },
            "70xxxxxxxxxxxxxx63": { //second user ID
                "count": [
                    15,
                    4,
                    4,
                    1,
                    12
                ],
                "username": "username#0002"
            },

The problem is when I use client.user.cache.get() , the .get() part is not recognized, and I get a TypeError: Cannot read property 'tag' of undefined error.

For comparison, I ran these two lines of code side by side, but only the second line gave an error:

console.log(client.users.cache.get(message.author.id).tag);
console.log(client.users.cache.get(userID).tag);

Has anyone ever encountered this issue? Help is much appreciated. Thanks!

Edit: I did some more testing and figured out the error was because client.user.cache.get(userID) would return an undefined user, while client.user.cache.get(message.author.id) would not. Anyone know the reason for this?

Answer 1

您可以直接从author那里获取.tag只需执行message.author.tag