Discord Bot not correctly reading .json Database - json

Question

I am attempting to build a discord bot, and one of its features is that it will be able to recognize whether a user has interacted with the bot before by using a json array database. What is instead happening is that it does not read the array, and writes the username into the file even if it is already in the database.
const Discord = require('discord.js');
const fs = require('fs');
const { json } = require('stream/consumers');
const {prefix, token} = require('./config.json');
const {recognizedusers} = require('./database.json');
//Read File
let db = fs.readFileSync('./database.json');
db = JSON.parse(db);
// New discord client
const client = new Discord.Client({ intents: ["GUILDS", "GUILD_MESSAGES"] });
//Client run once
client.once('ready', () => {
console.log('Ready!');
});
//Client always run code
client.on('message', message => {
let msg_content = message.content.toLowerCase()
// Mixed message content response
if (msg_content.includes('test 1') && msg_content.includes('test 2')) {
message.channel.send('test 2: electric boogaloo')
}
if (msg_content.includes('test') && !message.author.username.includes(db.recognizedusers)) {
message.channel.send('unrecognized name')
//Edit Variable
db.recognizedusers.push(message.author.username)
// write file
fs.writeFileSync('./database.json', JSON.stringify(db));
}
});
client.login(token);

Answer 1

Elitezen fixed my problem.
I think you ment !db.recognizedusers.includes(message.author.username)