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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Arrays
8.1 Arrays – Sammlungen unter einem Variablennamen
8.1.1 Array erzeugen
Arrays sind Objekte, die eine Sammlung von Daten – vergleichbar mit einer Liste – in einer einzigen Variablen speichern. Anstelle von vier, fünf oder 75 Variablennamen nutzt JavaScript den Namen des Arrays und spricht die einzelnen Elemente über ihren Index an. Der Index startet wie in fast allen Programmiersprachen mit 0.
Arrays beginnen und enden mit eckigen Klammern. Die Werte werden durch Kommas voneinander getrennt.
Die Elemente eines Arrays können Zahlen, ...
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