https://github.com/compwright/is-lower-case

Check if a string is lower case
https://github.com/compwright/is-lower-case

nodejs string

Last synced: about 1 month ago
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Check if a string is lower case

• Host: GitHub
• URL: https://github.com/compwright/is-lower-case
• Owner: compwright
• License: mit
• Created: 2018-09-19T17:59:42.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2025-11-18T15:04:57.000Z (4 months ago)
• Last Synced: 2025-11-18T17:09:43.710Z (4 months ago)
• Topics: nodejs, string
• Language: JavaScript
• Homepage: https://www.npmjs.com/package/@compwright/is-lower-case
• Size: 575 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Funding: .github/FUNDING.yml
  • License: LICENSE

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README

          
# @compwright/is-lower-case

[![Build status][travis-image]][travis-url]

[![Dependency Status](https://img.shields.io/david/compwright/is-lower-case.svg?style=flat-square)](https://david-dm.org/compwright/is-lower-case)

[![Download Status](https://img.shields.io/npm/dm/@compwright/is-lower-case.svg?style=flat-square)](https://www.npmjs.com/package/@compwright/is-lower-case)

[![Sponsor on GitHub](https://img.shields.io/static/v1?label=Sponsor&message=❤&logo=GitHub&link=https://github.com/sponsors/compwright)](https://github.com/sponsors/compwright)

Check if a string is lower case.

Forked from [blakeembrey/is-lower-case](https://github.com/blakeembrey/is-lower-case), with the following improvements:

* Removed unnecessary dependencies

* Added locale support

## Installation

```

npm install @compwright/is-lower-case --save

```

## Usage

```javascript

const isLowerCase = require('@compwright/is-lower-case')

isLowerCase('STRING') // false

isLowerCase('String') // false

isLowerCase('string') // true

// Returns undefined for non-strings

isLowerCase(null) // undefined

```

Locale support:

```javascript

isLowerCase('STRİNG', 'tr') // false

```

## Typings

Includes a [TypeScript definition](is-lower-case.d.ts).

## License

MIT

[travis-image]: https://img.shields.io/travis/compwright/is-lower-case.svg?style=flat

[travis-url]: https://travis-ci.org/compwright/is-lower-case