146 lines
2.6 KiB
Markdown
146 lines
2.6 KiB
Markdown
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@license Apache-2.0
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Copyright (c) 2018 The Stdlib Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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# Remove UTF-8 BOM
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> Remove a UTF-8 [byte order mark][bom] (BOM) from the beginning of a string.
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<section class="intro">
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</section>
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<!-- /.intro -->
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<section class="usage">
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## Usage
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```javascript
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var removeUTF8BOM = require( '@stdlib/string/remove-utf8-bom' );
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```
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#### removeUTF8BOM( str )
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Removes a UTF-8 [byte order mark][bom] (BOM) from the beginning of a `string`.
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```javascript
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var str = removeUTF8BOM( '\ufeffbeep' );
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// returns 'beep'
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```
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</section>
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<!-- /.usage -->
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<section class="examples">
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## Examples
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<!-- eslint no-undef: "error" -->
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```javascript
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var removeUTF8BOM = require( '@stdlib/string/remove-utf8-bom' );
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var str = removeUTF8BOM( '\ufeffbeep' );
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// returns 'beep'
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str = removeUTF8BOM( 'boop\ufeff' );
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// returns 'boop\ufeff'
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str = removeUTF8BOM( 'be\ufeffbop' );
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// returns 'be\ufeffbop'
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str = removeUTF8BOM( 'foobar' );
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// returns 'foobar'
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```
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</section>
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<!-- /.examples -->
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* * *
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<section class="cli">
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## CLI
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<section class="usage">
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### Usage
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```text
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Usage: remove-utf8-bom [options] [<string>]
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Options:
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-h, --help Print this message.
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-V, --version Print the package version.
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```
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</section>
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<!-- /.usage -->
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<section class="examples">
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### Examples
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Assuming a shell which understands escape sequences,
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```bash
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$ remove-utf8-bom "\xEF\xBB\xBFbeep boop"
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beep boop
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```
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To use as a [standard stream][standard-streams],
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```bash
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$ echo -n '\ufeffbeep' | remove-utf8-bom
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beep
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```
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</section>
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<!-- /.examples -->
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</section>
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<!-- /.cli -->
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<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
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<section class="related">
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</section>
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<!-- /.related -->
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<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
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<section class="links">
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[bom]: https://en.wikipedia.org/wiki/Byte_order_mark#UTF-8
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[standard-streams]: https://en.wikipedia.org/wiki/Standard_streams
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</section>
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<!-- /.links -->
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