February 2015
Intermediate to advanced
664 pages
24h 26m
Polish
Content preview from Programowanie w JavaScript Rusz głową!
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jesteś tutaj
53
Szybki skok na głębokie wody JavaScriptu
Wyrazić się
Do pełnego wyrażenia siebie w języku JavaScript potrzebne są
wyrażenia
. Wyrażenia są
obliczane i zwracają wartości. W przedstawionych przykładach spotkałeś się już z kilkoma
wyrażeniami. Przeanalizujmy np. wyrażenie przedstawione poniżej.
var total = price - (price (Giscount / 100));
Oto instrukcja, która zapisuje w zmiennej total wynik
będący wartością wyrażenia.
A to wszystko jest jednym wyrażeniem.
To jest nasza
zmienna total.
I przypisanie.
Wyrażenie to reprezentuje
cenę pomniejszoną o zniżkę,
będącą pewnym procentem
ceny. A zatem, jeśli cena
wynosi 10, a zniżka 20,
w wyniku ...
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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.