68 lines
1.7 KiB
Markdown
68 lines
1.7 KiB
Markdown
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# string-width
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> Get the visual width of a string - the number of columns required to display it
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Some Unicode characters are [fullwidth](https://en.wikipedia.org/wiki/Halfwidth_and_fullwidth_forms) and use double the normal width. [ANSI escape codes](https://en.wikipedia.org/wiki/ANSI_escape_code) are stripped and doesn't affect the width.
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Useful to be able to measure the actual width of command-line output.
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## Install
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```
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$ npm install string-width
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```
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## Usage
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```js
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import stringWidth from 'string-width';
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stringWidth('a');
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//=> 1
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stringWidth('古');
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//=> 2
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stringWidth('\u001B[1m古\u001B[22m');
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//=> 2
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```
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## API
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### stringWidth(string, options?)
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#### string
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Type: `string`
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The string to be counted.
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#### options
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Type: `object`
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##### ambiguousIsNarrow
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Type: `boolean`\
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Default: `false`
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Count [ambiguous width characters](https://www.unicode.org/reports/tr11/#Ambiguous) as having narrow width (count of 1) instead of wide width (count of 2).
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## Related
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- [string-width-cli](https://github.com/sindresorhus/string-width-cli) - CLI for this module
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- [string-length](https://github.com/sindresorhus/string-length) - Get the real length of a string
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- [widest-line](https://github.com/sindresorhus/widest-line) - Get the visual width of the widest line in a string
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---
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<div align="center">
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<b>
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<a href="https://tidelift.com/subscription/pkg/npm-string-width?utm_source=npm-string-width&utm_medium=referral&utm_campaign=readme">Get professional support for this package with a Tidelift subscription</a>
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</b>
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<br>
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<sub>
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Tidelift helps make open source sustainable for maintainers while giving companies<br>assurances about security, maintenance, and licensing for their dependencies.
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</sub>
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</div>
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