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Do wybierania elementów z tablicy użyjemy pętli for.
Wiemy, że pierwszy element tablicy ma index 0, a tablica ma
7 elementów. Ostatni element ma index 6.
Odwołujemy się do elementu pisząc np. tablica
- czyli 4 element tablicy.
Czwarty bo indeksujemy od 0.
const tablica = [5,12,17,23,123,45,54];