4. String Template 문자열 템플릿

• 출처 https://www.youtube.com/watch?v=IDVnZPjRCYg&t=8s [Code with Joyce]
• ${}를 사용하여 표현식을 사용

val name = "kanginman"
val lastName = "Hong"

println("my name is ${name}") //결과값 my name is kanginman  
println("my name is ${name + lastName}") //결과값 my name is kanginmanHong  
println("is this true? ${1===0}") //결과값 is this true? false  
println("this is 2$a") //결과값 this is 2$a