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Kotlin Standard Library

The Kotlin Standard Library provides living essentials for everyday work with Kotlin. These include:

• Higher-order functions implementing idiomatic patterns (let, apply, use, synchronized, etc).
• Extension functions providing querying operations for collections (eager) and sequences (lazy).
• Various utilities for working with strings and char sequences.
• Extensions for JDK classes making it convenient to work with files, IO, and threading.

Packages