Change user nickname with discord.js

Question

I wonder if you can help (I search it and nothing...) I am learning how to work with discord.js node and I want to change my user nickname (not the username itself)

Answer 1

What it looks like is that you are trying to give your bot a nickname To change the bot's nickname use this:

const Discord = require('discord.js');
const client = new Discord.Client();
client.on('ready', () => {
    console.log('I am ready!');
});

client.on('message', message => {
    if (message.content.toLowerCase().startsWith('changeNick')) {
       var newNickname = message.content.replace("changeNick ", "");
       message.guild.me.setNickname(newNickname);
    }
});

If you want to change a users nickname you should use this:

const Discord = require('discord.js');
const client = new Discord.Client();
client.on('ready', () => {
    console.log('I am ready!');
});

client.on('message', message => {

    let args = message.content.split(" ");

    if(message.content.toLowerCase().startsWith("changeNick")){
        if(!message.mentions.users.first()) return message.channel.send("You didn't specify a user!");
         const user = message.mentions.members.first();
         const username = message.guild.members.cache.find(userI => userI.id == user);
         var newNickname = message.content.replace("changeNick "+args[1], "");
         username.setNickname(newNickname);
    }
});