February 2015
Intermediate to advanced
664 pages
24h 26m
Polish
Content preview from Programowanie w JavaScript Rusz głową!
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jesteś tutaj
303
Typy, równość, konwersje i cały ten jazz
Musimy coś wyznać
Jest pewien aspekt języka JavaScript, którego specjalnie jeszcze
nie przedstawialiśmy. Mogliśmy, co prawda, powiedzieć Ci
o tym od razu, jednak opisanie go teraz było bardziej sensowne.
Nie chodzi o to, że próbowaliśmy zamydlić Ci oczy, a raczej
o to, że nie pisaliśmy o wszystkim. A o co właściwie chodzi?
Spójrz na poniższy przykład.
var testMe = 99;
if (testMe == 99) {
// wszystko jest w porzÈdku
}
W pewnym momencie zostaje określona
wartość zmiennej, w tym przypadku
przypisujemy jej liczbę 99.
A później w wyrażeniu warunkowym
zmienna jest porównywana
z wartością.
Banalne, nieprawdaż? ...
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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.