Summing Up
You have learned a lot in this chapter. What once looked like random characters (ahem, /(?:1-)?\(?(\d{3})[\-\)]\d{3}-\d{4}/, ahem) now makes sense to you. Sure, it might take some time to figure out what it means (and I think it always will), but you can figure it out. Regular expressions are a great tool, but remember that just because you’re holding a hammer doesn’t make everything a nail. In this chapter, you learned about:
The regular expression syntax
Quantifiers such as ?, +, and *
Character sets in brackets
Groups and capturing ...
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