function domainType(domains) {
  let domainSplit = domains.map( a => a.split("."))
  let end = domainSplit.map(b => b[b.length-1])
  let labels = []
  end.forEach(a => {
    switch(a) {
      case "org":
        labels.push("organization")
        break;
      case "com":
        labels.push("commercial")
        break;
      case "net":
        labels.push("network")
        break;
      case "info":
        labels.push("information")
        break;
      default :
        return
    }
  })
  return labels
}



/**
* Test Suite 
*/
describe('domainType()', () => {
    it('returns list of domain types', () => {
        // arrange
        const domains = ["en.wiki.org", "codefights.com", "happy.net", "code.info"];
        
        // act
        const result = domainType(domains);

        // log
        console.log("result: ", result);
        
        // assert
        expect(result).toEqual(["organization", "commercial", "network", "information"]);
    });
});