[//]: # (title: append) Adds one or several rows to [`DataFrame`](DataFrame.md) ```kotlin df.append( "Mike", 15, "John", 17, "Bill", 30, ) ``` If the [compiler plugin](Compiler-Plugin.md) is enabled, a typesafe overload of `append` is available for `@DataSchema` classes. ```kotlin @DataSchema data class Person(val name: String, val age: Int) ``` ```kotlin val df = dataFrameOf( Person("Mike", 15), Person("John", 17), ) df.append(Person("Bill", 30)) ``` **Related operations**: [](appendDuplicate.md)