September 2024
Intermediate to advanced
320 pages
6h 11m
German
Content preview from JavaScript Schnelleinstieg - Dynamische Webseiten programmieren in 14 Tagen
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Ereignisse – Events
11.1 Event Handling – Ereignisse erkennen
Events – Ereignisse – sind der Kern aller interaktiven Anwendungen: Das Drücken einer Taste oder der Mausklick auf einen Button macht selbst dem Betriebssystem Beine. Events entstehen mit dem Laden der Seite, werden vom Browser signalisiert und melden automatisch Scrollen, jeden Touch und jede Mausbewegung bis zum Verlassen der Seite.
Die Event-Erkennung ist in JavaScript schon eingebaut. Die Reaktion auf ein Event wird in sogenannten »Event Handlern« programmiert.
11.1.1 Arten von Events
Nahezu jedes Element reagiert auf Events und JavaScript kann alle Events abfangen und dem Skript ...
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