155 lines
3.2 KiB
Markdown
155 lines
3.2 KiB
Markdown
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<!--
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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 Words
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> Remove a list of words from 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 removeWords = require( '@stdlib/string/remove-words' );
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```
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#### removeWords( str, words\[, ignoreCase] )
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Removes all occurrences of the given `words` from a `string`.
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```javascript
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var str = 'beep boop Foo bar';
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var out = removeWords( str, [ 'boop', 'foo' ] );
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// returns 'beep Foo bar'
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```
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By default, words are removed from an input `string` in case of an exact match. To perform a case-insensitive replace operation, set `ignoreCase` to `true`.
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```javascript
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var str = 'beep boop Foo bar';
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var out = removeWords( str, [ 'boop', 'foo' ], true );
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// returns 'beep bar'
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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 removeWords = require( '@stdlib/string/remove-words' );
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var stopwords = require( '@stdlib/datasets/stopwords-en' );
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var inmap = require( '@stdlib/utils/inmap' );
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var spam = require( '@stdlib/datasets/spam-assassin' );
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var corpus = spam();
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var words = stopwords();
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function remove( mail, idx ) {
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var newText = removeWords( mail.text, words );
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console.log( 'After removing stop words, email %d contains %d characters. Originally, it contained %d.', idx, newText.length, mail.text.length );
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mail.text = newText;
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}
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inmap( corpus, remove );
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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-words [options] [<string>] --words=<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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--words w1,w2,... Comma-separated list of words.
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--ignore-case Perform case-insensitive replace operation.
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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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```bash
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$ remove-words 'beep! boop!!!' --words='beep,boop'
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! !!!
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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 'beep! boop!!!' | remove-words --words='BEEP,BOOP' --ignore-case
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! !!!
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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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[standard-streams]: https://en.wikipedia.org/wiki/Standard_streams
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</section>
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<!-- /.links -->
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