December 2017
Intermediate to advanced
240 pages
8h 11m
Polish
Content preview from Tajniki języka JavaScript. ECMAScript 6 i dalej
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Rozdział 5. Kolekcje
Kolekcje oraz dostęp do danych o określonej strukturze to kluczowe elementy niemal wszystkich programów pisanych w języku JavaScript. Od samego początku istnienia języka aż do chwili obecnej podstawowymi mechanizmami używanymi do tworzenia struktur danych są tablice i obiekty. Oczywiście, powstawały także biblioteki, które korzystając z tablic i obiektów, implementowały struktury danych wyższego poziomu.
Jednak w ES6 niektóre najbardziej przydatne (i zoptymalizowane pod względem wydajności działania!) spośród tych abstrakcji danych zostały dodane jako macierzyste elementy języka.
Zaczniemy od przedstawienia tablic określonego typu (ang. TypedArrays), rozwiązania wprowadzonego kilka lat temu wraz z udostępnieniem wersji ES5, ...
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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.
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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.