February 2015
Intermediate to advanced
664 pages
24h 26m
Polish
Content preview from Programowanie w JavaScript Rusz głową!
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jesteś tutaj
219
Zrozumieć obiekty
Za kulisami
Porównanie danych typów prostych i obiektów
Referencję do obiektu możesz sobie wyobrazić jako kolejną wartość zmiennej, co
oznacza, że można ją wziąć i umieścić w kubku, tak samo jak każdą inną wartość
typu prostego. W przypadku danych typów prostych wartość zamiennej jest…
wartością, taką jak
5
,
-26.7
,
ĵF]HĂÊĵ
lub
false
. Natomiast w przypadku zmiennych
referencyjnych wartością zmiennej jest referencja, czyli wartość reprezentująca sposób
dotarcia
do konkretnego obiektu.
var x = 3;
Zmienna zawiera
OLF]EĐ
var myCar = {...};
W zmiennej zostaje zapisana
UHIHUHQFMDGRRELHNWX&DU
Sam obiekt Car nie jest ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.