$ npm install --save camelcase-keys

js
const camelcaseKeys = require('camelcase-keys');

camelcaseKeys({'foo-bar': true});
//=> {fooBar: true}


const argv = require('minimist')(process.argv.slice(2));
//=> {_: [], 'foo-bar': true}

camelcaseKeys(argv);
//=> {_: [], fooBar: true}