February 2015
Intermediate to advanced
664 pages
24h 26m
Polish
Content preview from Programowanie w JavaScript Rusz głową!
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56
Rozdział 1.
Iteracje w języku JavaScript
Jak działa pętla while?
A teraz przeanalizujemy pętlę
while
, jakbyśmy widzieli ją po raz pierwszy, by dokładnie
dowiedzieć się, jak działa. Zauważ, że dodaliśmy do kodu deklarację zmiennej
scoops
i przypisaliśmy jej wartość początkową
5
.
A teraz spróbujemy wykonywać ten kod. Najpierw przypisujemy zmiennej
scoops wartość 5.
var scoops = 5;
while (scoops > 0) {
Gocumentwrite(”Kolejna Jaïka<br>”);
scoops = scoops - 1;
}
Gocumentwrite(”¿ycie be] loGöw nie jest juĝ takie samo”);
Teraz docieramy do instrukcji while. Kiedy zaczynajmy ją wykonywać, pierwszą
rzeczą, którą robimy, jest przetworzenie wyrażenia logicznego, ...
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