24 lines
721 B
Markdown
24 lines
721 B
Markdown
---
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title: normalizeLineEndings
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tags: string,regexp,intermediate
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firstSeen: 2020-05-04T12:33:13+03:00
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lastUpdated: 2020-10-21T21:54:53+03:00
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---
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Normalizes line endings in a string.
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- Use `String.prototype.replace()` and a regular expression to match and replace line endings with the `normalized` version.
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- Omit the second argument, `normalized`, to use the default value of `'\r\n'`.
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```js
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const normalizeLineEndings = (str, normalized = '\r\n') =>
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str.replace(/\r?\n/g, normalized);
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```
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```js
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normalizeLineEndings('This\r\nis a\nmultiline\nstring.\r\n');
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// 'This\r\nis a\r\nmultiline\r\nstring.\r\n'
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normalizeLineEndings('This\r\nis a\nmultiline\nstring.\r\n', '\n');
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// 'This\nis a\nmultiline\nstring.\n'
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```
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