freeCodeCamp/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/regular-expressions/match-all-non-numbers.md

id, title, challengeType, forumTopicId, dashedName

id	title	challengeType	forumTopicId	dashedName
587d7db8367417b2b2512ba1	Match All Non-Numbers	1	301347	match-all-non-numbers

--description--

The last challenge showed how to search for digits using the shortcut \d with a lowercase d. You can also search for non-digits using a similar shortcut that uses an uppercase D instead.

The shortcut to look for non-digit characters is \D. This is equal to the character class [^0-9], which looks for a single character that is not a number between zero and nine.

--instructions--

Use the shorthand character class for non-digits \D to count how many non-digits are in movie titles.

--hints--

Your regex should use the shortcut character to match non-digit characters

assert(/\\D/.test(noNumRegex.source));

Your regex should use the global flag.

assert(noNumRegex.global);

Your regex should find no non-digits in "9".

assert('9'.match(noNumRegex) == null);

Your regex should find 6 non-digits in "Catch 22".

assert('Catch 22'.match(noNumRegex).length == 6);

Your regex should find 11 non-digits in "101 Dalmatians".

assert('101 Dalmatians'.match(noNumRegex).length == 11);

Your regex should find 15 non-digits in "One, Two, Three".

assert('One, Two, Three'.match(noNumRegex).length == 15);

Your regex should find 12 non-digits in "21 Jump Street".

assert('21 Jump Street'.match(noNumRegex).length == 12);

Your regex should find 17 non-digits in "2001: A Space Odyssey".

assert('2001: A Space Odyssey'.match(noNumRegex).length == 17);

--seed--

--seed-contents--

let movieName = "2001: A Space Odyssey";
let noNumRegex = /change/; // Change this line
let result = movieName.match(noNumRegex).length;

--solutions--

let movieName = "2001: A Space Odyssey";
let noNumRegex = /\D/g; // Change this line
let result = movieName.match(noNumRegex).length;