Remove the last “\n” from a textarea

Question

How to remove the last \"\\n\" from a textarea?

Answer 1

Only remove the last newline characters (\n):

verses1 = "1\n222\n"
verses1.replace(/\n$/, "")
// "1\n222"

verses2 = "1\n222\n\n"
verses2.replace(/\n$/, "")
// "1\n222\n"

Only all the last newlines (\n):

verses = "1\n222\n\n"
verses.replace(/\n+$/, "")
// "1\n222"

https://regexr.com/4uu1r