March 2021
Intermediate to advanced
608 pages
22h 5m
Polish
Content preview from JavaScript
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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.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.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.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.
Rozdział 5. Instrukcje
W rozdziale 4. wyrażenia stosowane w języku JavaScript nazwałem frazami. Kontynuując tę analogię, instrukcje można nazwać zdaniami lub poleceniami. Na końcu instrukcji umieszcza się średnik (patrz podrozdział 2.6), tak jak na końcu zdania w języku pisanym — kropkę. Wyrażenia są wyliczane w celu uzyskania wyników, natomiast instrukcje są wykonywane, aby coś się stało.
Jednym ze sposobów „sprawiania, aby coś się stało”, jest wyliczanie wyrażeń wywołujących efekty uboczne. Tego rodzaju wyrażenia, na przykład przypisania wartości lub wywołania funkcji, mogą być samodzielnymi instrukcjami. Używane w takiej formie są nazywane instrukcjami wyrażeniowymi. Inną kategorię tworzą instrukcje deklaracyjne, które deklarują nowe zmienne ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
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.