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                <div id="wynik"></div>




                /* OPIS
Pętla for jak śnieżna kula ulepi kod HTML, zwiększając go w każdym 
obrocie o kolejną liczbę od 1 do 100 i przecinek (,).
Kod HTML czyli zmienna kodHTML zostanie wstrzykniety do div-a wynik

Operator += pozwala uprościć zapis, zapis:
kodHTML+=i+', ';    jest równoznaczny zapisowi    kodHTML=kodHTML+i+', ';

const wynik=document.querySelector('#wynik');

//utworzenie zmiennej, która będzie przechowywać kod do wstrzyknięcia
let kodHTML='';
//pętla for
for(let i=1;i<=100;i++)
    kodHTML+=i+', ';