July 2012
Intermediate to advanced
288 pages
6h 12m
German
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Chapter 5. Objekte
JavaScripts fundamentaler Datentyp ist das Objekt. Ein Objekt ist ein zusammengesetzter Wert: Es fasst mehrere Werte (elementare Werte oder Objekte) zusammen und ermöglicht es, diese über einen Namen zu speichern und abzurufen. Ein Objekt ist eine ungeordnete Sammlung von Eigenschaften, die jeweils einen Namen und einen Wert haben. Eigenschaftsnamen sind Strings. Man kann also sagen, dass Objekte Strings auf Werte abbilden. Diese String/Wert-Zuordnung ist unter den unterschiedlichsten Namen bekannt: Sie kennen diese grundlegende Datenstruktur wahrscheinlich unter den Namen »Hash«, »Hashtable«, »Wörterbuch« oder »assoziatives Array«. Ein Objekt ist allerdings mehr als eine einfache String/Wert-Zuordnung. Ein JavaScript-Objekt ...
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