function domainType(domains) {
    //  write code here.
    
    const domainNames = domains.map(domain => domain.split('.'))
                                .map(domain => domain[domain.length -1])
    
    const results = [];
    for (let i = 0; i < domainNames.length; i++ ){
        
        switch(domainNames[i]){
            case 'org':
                results.push("organization")
                break
            case 'com':
                results.push("commercial")
                break
            case 'net':
                results.push("network")
                break
            case 'info':
                results.push("information")
                break
            
        }
    }
    
    return results;
}



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