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schangxiang@126.com

2025-09-19 18966e02fb573c7e2bb0c6426ed792b38b910940

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# decamelize [![Build Status](https://travis-ci.org/sindresorhus/decamelize.svg?branch=master)](https://travis-ci.org/sindresorhus/decamelize)
 
> Convert a camelized string into a lowercased one with a custom separator<br>
> Example: `unicornRainbow` → `unicorn_rainbow`
 
 
## Install
 
```
$ npm install --save decamelize
```
 
 
## Usage
 
```js
const decamelize = require('decamelize');
 
decamelize('unicornRainbow');
//=> 'unicorn_rainbow'
 
decamelize('unicornRainbow', '-');
//=> 'unicorn-rainbow'
```
 
 
## API
 
### decamelize(input, [separator])
 
#### input
 
Type: `string`
 
#### separator
 
Type: `string`<br>
Default: `_`
 
 
## Related
 
See [`camelcase`](https://github.com/sindresorhus/camelcase) for the inverse.
 
 
## License
 
MIT © [Sindre Sorhus](https://sindresorhus.com)