Дмитрий Малай's HackerRank Certificates
Ruby (Intermediate)
It covers topics like Ruby Built-ins, Hash, Range, Set, Collections and Enumerables, simple regular expressions, reading, and writing to JSON and XML file types, among others
It covers topics like Ruby Built-ins, Hash, Range, Set, Collections and Enumerables, simple regular expressions, reading, and writing to JSON and XML file types, among others