February 2015
Intermediate to advanced
664 pages
24h 26m
Polish
Content preview from Programowanie w JavaScript Rusz głową!
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60
Rozdział 1.
Instrukcje warunkowe
Podejmowanie decyzji w języku JavaScript
Widziałeś już przykład zastosowania wyrażeń warunkowych w celu podejmowania decyzji, czy należy
kontynuować działanie pętli
while
. Wyrażeń logicznych można także używać podczas podejmowania
decyzji przy użyciu instrukcji
if
. Instrukcja ta pozwala wykonać umieszczony w niej blok kodu
wyłącznie w przypadku, gdy warunek przyjmie wartość
true
. Oto przykład.
Ten warunek sprawdza, czy zostało
nam już mniej niż trzy gałki lodów.
if (cashInWallet > 5) {
order = “Ja wezmę zestaw: cheeseburger, frytki i colę”;
} else {
order = “Ja poproszę tylko o szklankę wody”;
}
A jeśli liczba pozostałych ...
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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.