February 2015
Intermediate to advanced
664 pages
24h 26m
Polish
Content preview from Programowanie w JavaScript Rusz głową!
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Szybki skok na głębokie wody JavaScriptu
Zmienne i wartości
Być może zauważyłeś, że w języku JavaScript instrukcje zazwyczaj są w jakiś
sposób związane ze zmiennymi, a zmienne służą do przechowywania wartości.
Jakich wartości? Poniżej przedstawiliśmy kilka przykładów.
var winners = ;
var name = ”.siÈĝÚ”;
var is(liJible = false;
Ta instrukcja deklaruje zmienną
o nazwie winners i zapisuje
w niej wartość liczbową 2.
Z kolei ta instrukcja zapisuje
łańcuch znaków (skrótowo
nazywamy je po prostu łańcuchami)
w zmiennej o nazwie name.
I w końcu ta instrukcja zapisuje
wartość false w zmiennej o nazwie
isEligible. Wartości true i false
nazywamy ...
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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.
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.