24 lines
525 B
Markdown
24 lines
525 B
Markdown
---
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title: slugify
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tags: string,regexp,intermediate
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---
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Converts a string to a URL-friendly slug.
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- Use `String.prototype.toLowerCase()` and `String.prototype.trim()` to normalize the string.
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- Use `String.prototype.replace()` to replace spaces, dashes and underscores with `-` and remove special characters.
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```js
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const slugify = str =>
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str
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.toLowerCase()
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.trim()
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.replace(/[^\w\s-]/g, '')
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.replace(/[\s_-]+/g, '-')
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.replace(/^-+|-+$/g, '');
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```
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```js
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slugify('Hello World!'); // 'hello-world'
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```
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