time-to-botec/js/node_modules/@stdlib/string/truncate/README.md
NunoSempere b6addc7f05 feat: add the node modules
Necessary in order to clearly see the squiggle hotwiring.
2022-12-03 12:44:49 +00:00

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# truncate
> Truncate a string to a specified length.
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## Usage
```javascript
var truncate = require( '@stdlib/string/truncate' );
```
#### truncate( str, len\[, ending] )
Truncates a string to a specified length.
```javascript
var out = truncate( 'beep boop', 7 );
// returns 'beep...'
```
By default, the truncated string is appended with `'...'`. To customize the truncated string, provide an `ending` argument:
```javascript
var out = truncate( 'beep boop', 7, '!' );
// returns 'beep b!'
out = truncate( 'beep boop', 7, '!!!' );
// returns 'beep!!!'
```
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## Examples
<!-- eslint no-undef: "error" -->
```javascript
var truncate = require( '@stdlib/string/truncate' );
var str = 'Lorem ipsum dolor sit amet, consectetur adipiscing elit.';
var out = truncate( str, 14 );
// returns 'Lorem ipsum...'
str = 'To be or not to be, that is the question';
out = truncate( str, 19, '!' );
// returns 'To be or not to be!'
str = 'The quick fox jumps over the lazy dog.';
out = truncate( str, 16, '...' );
// returns 'The quick fox...'
str = '🐺 Wolf Brothers 🐺';
out = truncate( str, 6 );
// returns '🐺 W...'
```
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* * *
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## CLI
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### Usage
```text
Usage: truncate [options] [<string>] --len <length>
Options:
-h, --help Print this message.
-V, --version Print the package version.
--len length String length.
--ending str Custom ending. Default: '...'.
--split sep Delimiter for stdin data. Default: '/\\r?\\n/'.
```
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### Notes
- If the split separator is a [regular expression][mdn-regexp], ensure that the `split` option is either properly escaped or enclosed in quotes.
```bash
# Not escaped...
$ echo -n $'Hello, World!\nBeep Boop Baz' | truncate --len 6 --split /\r?\n/
# Escaped...
$ echo -n $'Hello, World!\nBeep Boop Baz' | truncate --len 6 --split /\\r?\\n/
```
- The implementation ignores trailing delimiters.
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### Examples
```bash
$ truncate 'Hello, World!' --len 8
Hello...
$ truncate 'Hello, World!' --len 6 --ending '!'
Hello!
```
To use as a [standard stream][standard-streams],
```bash
$ echo -n 'Hello, World!' | truncate --len 8
Hello...
```
By default, when used as a [standard stream][standard-streams], the implementation assumes newline-delimited data. To specify an alternative delimiter, set the `split` option.
```bash
$ echo -n 'Hello, World!\tBeep Boop' | truncate --split '\t' --len 8
Hello...
Beep ...
```
</section>
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</section>
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* * *
## See Also
- <span class="package-name">[`@stdlib/string/truncate-middle`][@stdlib/string/truncate-middle]</span><span class="delimiter">: </span><span class="description">truncate a string in the middle to a specified length.</span>
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[standard-streams]: https://en.wikipedia.org/wiki/Standard_streams
[mdn-regexp]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions
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[@stdlib/string/truncate-middle]: https://github.com/stdlib-js/string/tree/main/truncate-middle
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