asiellb · September 6, 2021 16:24
diff --git a/gistfile1.txt b/gistfile1.txt
 /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i  full regex
 /	                             start of regex
 \A	                             atch start of a string
 [\w+\-.]+	                     at least one word character, plus, hyphen, or dot
 @	                             literal “at sign”
 [a-z\d\-.]+	                     at least one letter, digit, hyphen, or dot
 \.	                             literal dot
 [a-z]+	                             at least one letter
 \z	                             match end of a string
 /	                             end of regex
 i	                             case insensitive
	/\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i full regex
	/ start of regex
	\A atch start of a string
	[\w+\-.]+ at least one word character, plus, hyphen, or dot
	@ literal “at sign”
	[a-z\d\-.]+ at least one letter, digit, hyphen, or dot
	\. literal dot
	[a-z]+ at least one letter
	\z match end of a string
	/ end of regex
	i case insensitive