Kotlin string escape special char: $

Question

This is my scratch:

// how to present $-$ as Kotlin string
val var1 = "\$-\$"
val var2 = "\$-$"

print("${var1.count()}: $var1")
print("${var2.count()}: $var2")

print("${var1 == var2}")

can someone explain why var2 works? (no need to escape 2nd $ char?)

Answer 1

A template expression in a template String in Kotlin is a dollar ($) followed by either a name or an expression in curly braces (see the String templates documentation).

The single $ sign which is followed by nothing in your String var2 does not need to be escaped because it is not a template expression.