String.camelize

camelize.js

// I thought I needed it, but I didn't need it anymore,
// but I already implemented it. So, here we go, if you
// ever would need a Javascript camelize implementation
// you can freely use this :-).

//  - [email protected]  Tue Feb 15 16:49:52 CET 2011

jQuery.extend (String.prototype, {
  camelize: function () {
    return this.replace (/(?:^|[-_])(\w)/g, function (_, c) {
      return c ? c.toUpperCase () : '';
    })
  }
});

More ES6ish:

const camelCase = (string) => {
/*
 * by http://stackoverflow.com/users/140811/scott
 * at http://stackoverflow.com/a/2970588/6776673
 */
  return string
    .replace(/\s(.)/g, $1 => $1.toUpperCase())
    .replace(/\s/g, '')
    .replace(/^(.)/, $1 => $1.toLowerCase())
}