Convert a dash/dot/underscore/space separated string to camelCase:
foo-bar
→fooBar
$ npm install --save camelcase
```js const camelCase = require('camelcase');
camelCase('foo-bar'); //=> 'fooBar'
camelCase('foo_bar'); //=> 'fooBar'
camelCase('Foo-Bar'); //=> 'fooBar'
camelCase('--foo.bar'); //=> 'fooBar'
camelCase('foo__bar'); //=> 'fooBar'
camelCase('foo bar'); //=> 'fooBar'
console.log(process.argv[3]); //=> '--foo-bar' camelCase(process.argv[3]); //=> 'fooBar'
camelCase('foo', 'bar'); //=> 'fooBar'
camelCase('foo', '--bar'); //=> 'fooBar' ```
MIT © Sindre Sorhus