--- id: 587d7db8367417b2b2512ba0 title: Match Everything But Letters and Numbers challengeType: 1 forumTopicId: 301353 dashedName: match-everything-but-letters-and-numbers --- # --description-- You've learned that you can use a shortcut to match alphanumerics `[A-Za-z0-9_]` using `\w`. A natural pattern you might want to search for is the opposite of alphanumerics. You can search for the opposite of the `\w` with `\W`. Note, the opposite pattern uses a capital letter. This shortcut is the same as `[^A-Za-z0-9_]`. ```js let shortHand = /\W/; let numbers = "42%"; let sentence = "Coding!"; numbers.match(shortHand); sentence.match(shortHand); ``` The first `match` call would return the value `["%"]` and the second would return `["!"]`. # --instructions-- Use the shorthand character class `\W` to count the number of non-alphanumeric characters in various quotes and strings. # --hints-- Your regex should use the global flag. ```js assert(nonAlphabetRegex.global); ``` Your regex should find 6 non-alphanumeric characters in the string `The five boxing wizards jump quickly.`. ```js assert( 'The five boxing wizards jump quickly.'.match(nonAlphabetRegex).length == 6 ); ``` Your regex should use the shorthand character to match characters which are non-alphanumeric. ```js assert(/\\W/.test(nonAlphabetRegex.source)); ``` Your regex should find 8 non-alphanumeric characters in the string `Pack my box with five dozen liquor jugs.` ```js assert( 'Pack my box with five dozen liquor jugs.'.match(nonAlphabetRegex).length == 8 ); ``` Your regex should find 6 non-alphanumeric characters in the string `How vexingly quick daft zebras jump!` ```js assert( 'How vexingly quick daft zebras jump!'.match(nonAlphabetRegex).length == 6 ); ``` Your regex should find 12 non-alphanumeric characters in the string `123 456 7890 ABC def GHI jkl MNO pqr STU vwx YZ.` ```js assert( '123 456 7890 ABC def GHI jkl MNO pqr STU vwx YZ.'.match(nonAlphabetRegex) .length == 12 ); ``` # --seed-- ## --seed-contents-- ```js let quoteSample = "The five boxing wizards jump quickly."; let nonAlphabetRegex = /change/; // Change this line let result = quoteSample.match(nonAlphabetRegex).length; ``` # --solutions-- ```js let quoteSample = "The five boxing wizards_jump quickly."; let nonAlphabetRegex = /\W/g; // Change this line let result = quoteSample.match(nonAlphabetRegex).length; ```