[lang-ref] String interpolation (variable) ( kotlin )

@Test
fun stringInterpolationWithVariable() {
	// "$x"
	val name = "John"
	val s = "My name is $name."
	assertEquals("My name is John.", s)
}

@Test
fun stringInterpolationWithVariableAlternative() {
	// "${x}"
	val name = "John"
	val s = "My name is ${name}."
	assertEquals("My name is John.", s)
}