Why does this query return no results?

Code:

const conn = mysql.createConnection({
    host: 'localhost',
    port: 3306,
    username: 'root',
    password: '',
    multipleStatements: true,
    timeout: 5000
});

conn.connect((err) => {
    if (err) {
        // console.log(err.code);
        // console.log(err.fatal);
        // console.log(err.sql);
        // console.log(err.sqlState);
        // console.log(err.sqlMessage);

        dialog.showErrorBox('Uh-Oh!', err.code);

        return;
    }

    const SQL = 'SELECT TABLE_NAME FROM information_schema.TABLES WHERE TABLE_SCHEMA = "' + db + '"';

    conn.query(SQL, function (err, rows, fields) {
        if (err) {
            dialog.showErrorBox('Uh-Oh!', err.code);

            return;
        }

        console.log(SQL);
        console.log(rows); // []
        console.log(fields);
    });
});

When SQL is dumped it returns:

SELECT * FROM information_schema.TABLES WHERE TABLE_SCHEMA = "survive"

However rows is always an empty array. When I run the exact query in PMA then:

I am not getting errors and I have tried connecting with debug: true too.

[sqlbot]

@Script47 FWIW you may want to SELECT * FROM mysql.user WHERE user = ''. Your server is allowing anonymous logins, and you probably want to delete those empty-username entries. Had they not been there, you would have failed to connect and the error message would likely have identified you as ''@'localhost', which might have been a tipoff.

[dougwilson]

Probably because there is no such option as username; it’s called user: https://github.com/mysqljs/mysql#connection-options

this.conn = mysql.createConnection({
    host: this.get_host(),
    user: this.get_username(),
    password: this.get_password()
});