June 2024
Intermediate to advanced
424 pages
9h 13m
German
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KAPITEL 18
Globals
Schreiben Sie »schüchternen« Code – Module, die anderen Modulen nichts Unnötiges preisgeben und nicht von den Implementierungen anderer Module abhängig sind.
– David Thomas und Andrew Hunt, The Pragmatic Programmer: Your Journey to Mastery (dt. Der pragmatische Programmierer: Ihr Weg zur Meisterschaft)
Einführung
Die meisten modernen Sprachen unterstützen globale Funktionen, Klassen und Attribute. Man zahlt aber einen Preis, wenn man diese Artefakte verwendet. Selbst wenn Sie ein Objekt mit new() erstellen, führen Sie eine enge Kopplung mit einer globalen Klasse ein – es sei denn, Sie wenden einige der folgenden Rezepte an.
Globale Funktionen reifizieren
Problem
Sie verwenden globale Funktionen, die Sie von überall aus aufrufen ...
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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.