function domainType(domains) {
    /* Input : ["en.wiki.org", "codefights.com", "happy.net", "code.info"];
       Output : ["organization", "commercial", "network", "information"]
     */
    const result = [];
    for(let i=0; i< domains.length; i++){
         const domain = domains[i].split(".").pop()
         switch(domain)
         {
             case "org"  : result.push("organization")
             case "com"  : result.push("commercial")
             case ".net" : result.push("network")
             case "info" : result.push("information")              
         }
         return result;
    }
}



/**
* 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"]);
    });
});