1[test](../../index.md) / [foo](../index.md) / [kotlin.String](./index.md) 2 3### Extensions for kotlin.String 4 5| [fn](fn.md) | `fun String.fn(): Unit`<br>`fun String.fn(x: Int): Unit`<br>Function with receiver | 6| [foobar](foobar.md) | `val String.foobar: Int`<br>Property with receiver. | 7 8