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43 lines
1.1 KiB
Markdown
43 lines
1.1 KiB
Markdown
# string-width [](https://travis-ci.org/sindresorhus/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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const stringWidth = require('string-width');
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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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stringWidth('a');
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//=> 1
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```
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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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## License
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MIT © [Sindre Sorhus](https://sindresorhus.com)
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