20 lines
510 B
Markdown
20 lines
510 B
Markdown
---
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title: Check if string contains whitespace
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tags: string,regexp,beginner
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firstSeen: 2020-03-25T12:37:13+02:00
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lastUpdated: 2020-10-18T23:04:45+03:00
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---
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Checks if the given string contains any whitespace characters.
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- Use `RegExp.prototype.test()` with an appropriate regular expression to check if the given string contains any whitespace characters.
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```js
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const containsWhitespace = str => /\s/.test(str);
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```
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```js
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containsWhitespace('lorem'); // false
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containsWhitespace('lorem ipsum'); // true
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```
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