Jeff Jack jjack-vertex

	let regex;

	/* matching a specific string */
	regex = /hello/; // looks for the string between the forward slashes (case-sensitive)... matches "hello", "hello123", "123hello123", "123hello"; doesn't match for "hell0", "Hello"
	regex = /hello/i; // looks for the string between the forward slashes (case-insensitive)... matches "hello", "HelLo", "123HelLO"
	regex = /hello/g; // looks for multiple occurrences of string between the forward slashes...

	/* wildcards */
	regex = /h.llo/; // the "." matches any one character other than a new line character... matches "hello", "hallo" but not "h\nllo"
	regex = /h.llo/; // the "" matches any character(s) zero or more times... matches "hello", "heeeeeello", "hllo", "hwarwareallo"

MySQL