The '$' sign does not always mean 'end of string' in regex

Seth Larson's article focuses on the use of the regular expression `$` in the context of matching the end of a string or a newline. While many developers know the general rule that `$` indicates the end of a line, Larson details how this operates in various circumstances. He points out that `$` can match the end of a string in both single and multi-line contexts, which can be surprising for some users. The author also discusses situations where the interpretation of `$` may differ, such as in the context of different programming languages and libraries using regular expressions. With examples and visualizations, the article provides readers with practical knowledge on how to effectively use `$` in regular expressions.