Quantifiers

In the following table, you can find the patterns for quantifiers, which specify how many instances of a character, group, or character class must be present in an input for a match to be found.

Pattern	Description	Example
{n}	This matches exactly n occurrences of a regular expression.	/\d{5}/ matches "12345" (five digits) in "1234567890".
{n,}	This matches n or more occurrences of a regular expression.	/\d{5,}/ matches "1234567890" (minimum of five digits) in "1234567890".
{n,m}	This matches n to m number of occurrences of a regular expression.	/\d{5,7}/ matches "1234567" (minimum of five digits and a maximum of seven digits) in "1234567890".
*	This matches zero or more occurrences and is equivalent to {0,}.	/fo*/ matches "foo" in "foo" and matches "foooooooo" in "fooooooooled".
+	This matches one or more occurrences and is equivalent to {1,}.	...