freeCodeCamp/api-server/common/utils/index.js

import { pick } from 'lodash';

export function dashify(str) {
  return ('' + str)
    .toLowerCase()
    .replace(/\s/g, '-')
    .replace(/[^a-z0-9\-\.]/gi, '')
    .replace(/\:/g, '');
}
// todo: unify with server/utils/index.js:dasherize
const dasherize = dashify;
export { dasherize };

export const fixCompletedChallengeItem = obj => pick(
  obj,
  [ 'id', 'completedDate', 'solution', 'githubLink', 'challengeType', 'files' ]
);