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mjmeilahn/performanceLogs.js

Last active March 17, 2023 15:25
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JS: Performance Log Sequence
Raw
performanceLogs.js
// Return an array of User IDs that have
// logged the correct actions taken at least once
// in the performance logs with this exact sequence: A => B => C
const logs = [
{ userID: 1, action: 'C' },
{ userID: 2, action: 'B' },
{ userID: 3, action: 'B' },
{ userID: 2, action: 'A' },
{ userID: 2, action: 'B' },
{ userID: 3, action: 'C' },
{ userID: 3, action: 'A' },
{ userID: 1, action: 'A' },
{ userID: 3, action: 'B' },
{ userID: 2, action: 'C' },
{ userID: 1, action: 'B' },
{ userID: 3, action: 'C' },
]
const performaceLogs = arr => {
const users = []
arr.map(log => {
const id = log.userID
const user = arr.filter(i => id === i.userID)
const actions = user.map(u => u.action).join('')
if (actions.includes('ABC') && !users.includes(id)) {
users.push(id)
}
})
return users
}
console.log(performaceLogs(logs))
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