73 lines
2.3 KiB
Markdown
73 lines
2.3 KiB
Markdown
---
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id: 587d7db9367417b2b2512ba4
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title: Match Non-Whitespace Characters
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challengeType: 1
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forumTopicId: 18210
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---
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## Description
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<section id='description'>
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You learned about searching for whitespace using <code>\s</code>, with a lowercase <code>s</code>. You can also search for everything except whitespace.
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Search for non-whitespace using <code>\S</code>, which is an uppercase <code>s</code>. This pattern will not match whitespace, carriage return, tab, form feed, and new line characters. You can think of it being similar to the character class <code>[^ \r\t\f\n\v]</code>.
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```js
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let whiteSpace = "Whitespace. Whitespace everywhere!"
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let nonSpaceRegex = /\S/g;
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whiteSpace.match(nonSpaceRegex).length; // Returns 32
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```
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</section>
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## Instructions
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<section id='instructions'>
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Change the regex <code>countNonWhiteSpace</code> to look for multiple non-whitespace characters in a string.
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</section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: Your regex should use the global flag.
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testString: assert(countNonWhiteSpace.global);
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- text: Your regex should use the shorthand character <code>\S/code> to match all non-whitespace characters.
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testString: assert(/\\S/.test(countNonWhiteSpace.source));
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- text: Your regex should find 35 non-spaces in <code>"Men are from Mars and women are from Venus."</code>
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testString: assert("Men are from Mars and women are from Venus.".match(countNonWhiteSpace).length == 35);
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- text: 'Your regex should find 23 non-spaces in <code>"Space: the final frontier."</code>'
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testString: 'assert("Space: the final frontier.".match(countNonWhiteSpace).length == 23);'
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- text: Your regex should find 21 non-spaces in <code>"MindYourPersonalSpace"</code>
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testString: assert("MindYourPersonalSpace".match(countNonWhiteSpace).length == 21);
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='js-seed'>
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```js
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let sample = "Whitespace is important in separating words";
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let countNonWhiteSpace = /change/; // Change this line
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let result = sample.match(countNonWhiteSpace);
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```js
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let sample = "Whitespace is important in separating words";
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let countNonWhiteSpace = /\S/g; // Change this line
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let result = sample.match(countNonWhiteSpace);
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```
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</section>
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