npm package: @jsbits/escape-regex-str
Description: Escapes special characters in a string, for matching substrings with a RegExp instance.
Author: aMarCruz
Latest version: 1.0.3

# @jsbits/escape-regex-str

_Part of the [JSBits][jsbits-url] suite._

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Escapes special characters in a string, for matching substrings with a RegExp instance.

## Install

For NodeJS and JS bundlers:

```bash
npm i @jsbits/escape-regex-str
# or
yarn add @jsbits/escape-regex-str
```

or load `escapeRegexStr` in the browser:

```html
<script src="https://unpkg.com/@jsbits/escape-regex-str/index.b.min.js"></script>
```

### Targets

- ES5 compatible browser
- NodeJS v4.2 or later

## `escapeRegexStr(str)` ⇒ `string` 

Escapes special characters in a given string in preparation to be used as
argument of the JS `RegExp` constructor, useful when you want to match the
given string as a literal substring.

| Param | Type | Description |
| --- | --- | --- |
| str | `string` | A string. |

**Returns**: `string` - The escaped string.  

Since 1.0.0<br>
Group: dev<br>
Author/Maintainer: aMarCruz<br>

### Example

```ts
import escapeRegexStr from '@jsbits/escape-regex-str'

const sourceStr = 'Unicorn (white): $'

// without escapeRegexStr, the test fails.
const regex1 = new RegExp(sourceStr)
console.log(regex1.test('Unicorn (white): $1.00')) // ⇒ false

// with escapeRegexStr, it succeeds.
const regex2 = new RegExp(escapeRegexStr(sourceStr))
console.log(regex2.test('Unicorn (white): $1.00')) // ⇒ true
```

## Imports

All the [JSBits][jsbits-url] functions works in _strict mode_ and are compatible with:

- ES5 browsers, through the [jQuery](https://jquery.com/) `$.jsbits` object or the global `jsbits`.
- ESM Bundlers, like [webpack](http://webpack.github.io/) and [Rollup](https://rollupjs.org/).
- [ES modules](http://2ality.com/2014/09/es6-modules-final.html) for modern browsers or NodeJS with the `--experimental-modules` flag.
- [CommonJS](https://nodejs.org/docs/latest/api/modules.html#modules_modules) modules of NodeJS, jspm, and others.
- [Babel](https://babeljs.io/) and [TypeScript](www.typescriptlang.org/), through ES Module Interop.

Please see the [Distribution Formats][jsbits-formats] in the JSBits README to know about all the variants.

## Support my Work

I'm a full-stack developer with more than 20 year of experience and I try to share most of my work for free and help others, but this takes a significant amount of time and effort so, if you like my work, please consider...

[<img src="https://amarcruz.github.io/images/kofi_blue.png" height="36" title="Support Me on Ko-fi" />][kofi-url]

Of course, feedback, PRs, and stars are also welcome 🙃

Thanks for your support!

## License

The [MIT](LICENSE) License.

&copy; 2018-2019 Alberto Martínez &ndash; Readme powered by [jscc](https://github.com/aMarCruz/jscc) and [jsdoc-to-markdown](https://github.com/75lb/jsdoc-to-markdown)

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