February 2015
Intermediate to advanced
664 pages
24h 26m
Polish
Content preview from Programowanie w JavaScript Rusz głową!
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jesteś tutaj
589
Stosowanie prototypów
Czym są prototypy?
W języku JavaScript obiekty mogą dziedziczyć właściwości i zachowania
po innych obiektach. Precyzyjniej rzecz ujmując, możemy powiedzieć, że
JavaScript korzysta z rozwiązania nazywanego
dziedziczeniem prototypów, przy
czym
prototypem nazywany jest obiekt, po którym są dziedziczone zachowania.
Celem takiego rozwiązania jest zapewnienie możliwości dziedziczenia
i wielokrotnego stosowania istniejących właściwości (w tym także metod),
a jednocześnie umożliwienie rozszerzania ich w nowych obiektach.
Wszystko to jest dosyć abstrakcyjne, więc przeanalizujemy to na przykładzie.
Zaczniemy od prototypu ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.