You've learned shortcuts for common string patterns like alphanumerics. Another common pattern is looking for just digits or numbers.
The shortcut to look for digit characters is <code>\d</code>, with a lowercase <code>d</code>. This is equal to the character class <code>[0-9]</code>, which looks for a single character of any number between zero and nine.
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## Instructions
<sectionid='instructions'>
Use the shorthand character class <code>\d</code> to count how many digits are in movie titles. Written out numbers ("six" instead of 6) do not count.
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## Tests
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```yml
tests:
- text: Your regex should use the shortcut character to match digit characters
testString: 'assert("2001: A Space Odyssey".match(numRegex).length == 4, ''Your regex should find 4 digits in <code>"2001: A Space Odyssey"</code>.'');'