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# Fast String Width
A fast function for calculating the visual width of a string once printed to the terminal.
See [`fast-string-truncated-width`](https://github.com/fabiospampinato/fast-string-truncated-width) for a lower-level version of this.
## Install
```sh
npm install fast-string-width
```
## Usage
```ts
import fastStringWidth from 'fast-string-width';
// The width of various classes of characters is configurable
const options = {
controlWidth: 0,
tabWidth: 8,
emojiWidth: 2,
regularWidth: 1,
wideWidth: 2
};
// Calculating the visual width of some strings
fastStringWidth ( 'hello', options ); // => 5
fastStringWidth ( '\x1b[31mhello', options ); // => 5
fastStringWidth ( 'π¨βπ©βπ§βπ¦', options ); // => 2
fastStringWidth ( 'helloπ¨βπ©βπ§βπ¦', options ); // => 7
// Calculating the visual width while tweaking the width of emojis
fastStringWidth ( 'πΆπΆπ½', { ...options, emojiWidth: 1.5 } ); // => 3
```
## License
MIT Β© Fabio Spampinato