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- export function buildContactIds(contacts, limit) {
- return Object.entries(contacts || {})
- .map(([id, { n, ts }]) => ({ id, n, ts }))
- .sort(sortContacts)
- .slice(0, limit)
- .map(contact => contact.id)
- }
- // sort by decreasing count, decreasing timestamp.
- // i.e. highest count, most recent first.
- function sortContacts(a, b) {
- return a.n === b.n ? b.ts - a.ts : b.n - a.n
- }
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