Node.js sqlite3 IN operator

Question

So I am currently trying to make a query in Node.js:

// friends is an array object
db.all(\'SELECT email \' +
       \'FROM users\' +
       \'WHERE email in ?\'         


        

Answer 1

Slight variation on asbel's great answer:

db.all(
    `SELECT email FROM users WHERE email in (${ friends.fill('?') })`, 
    friends, 
    callback
);

Answer 2

db.all('SELECT email ' +
       'FROM users' +
       'WHERE email in ( ' + friends.map(function(){ return '?' }).join(',') + ' )', 
       friends, 
       function(err, rows) {
           if (!err) {