function domainType(domains) {
    const types = {
        "org":"organization", 
        "com":"commercial", 
        "net":"network", 
        "info":"information"
    }
    
    let domainTypes = []
    domains.forEach(domain => {
        var x = domain.split('.')
        domainTypes.push(types[x[x.length-1]])
    })
    
    return domainTypes
}



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