What is the difference between ^ and \A , $ and \Z in regex?

Question

In regular expressions:

• What is the difference between ^ and \A?
• What is the difference between $ and \Z?

Answer 1

In single-line mode, $ matches either the end of the string, or just before the newline at the end of the string. In multiline mode $ matches before each newline in the string. \Z always matches only the end of the string regardless of the line mode. Same with ^ versus \A.