Standard Library
Lists, maps, sets, sequences, ranges, regex and file I/O in Kotlin.
List, Map & Set
Immutable and mutable collection operations, filtering and sorting.
6 tutorialsSequences
Lazy sequences, operations and when to use sequences vs lists.
5 tutorialsRanges
Range expressions, until, downTo and step in Kotlin.
4 tutorialsRegular Expressions
Regex matching, find, replace and common patterns in Kotlin.
5 tutorialsFile I/O
Read and write files, lines and path operations in Kotlin.
6 tutorials