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helpers.js
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/
helpers.js
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const findUserByEmailAndUsername = (database, email, username) => {
for (const userID in database) {
const user = database[userID];
if (email === user.email) {
return [user, 'email'];
} else if (username === user.username) {
return [user, 'username'];
}
}
return null;
};
const urlsForUser = (database, id, username) => {
if (!username) {
for (const user in database) {
for (const url in database[user].urls) {
if (id === url) {
return [user, id];
}
}
}
} else {
for (const url in database[username].urls) {
if (id === url) {
return id;
}
}
}
return null;
};
const generateRandomString = function(length = 6) {
let result = '';
const characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
for (let i = 0; i < length; i++) {
result += characters.charAt(Math.floor(Math.random() * characters.length));
}
return result;
};
module.exports = {
findUserByEmailAndUsername,
urlsForUser,
generateRandomString
};