April 2015
Intermediate to advanced
288 pages
6h 9m
German
Content preview from HTML5, JavaScript und jQueryBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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6 jQuery
jQuery als Bibliothek
Um jQuery zu verstehen, muss man zunächst JavaScript verstehen. Manchmal wird jQuery wie eine unabhängige Sprache behandelt, die statt JavaScript verwendet werden kann. Zwar besitzt jQuery gewisse Merkmal einer Programmiersprache, wir sollten es aber dennoch als Bibliothek betrachten, mit der die Programmierung mit JavaScript in bestimmten Situationen optimieren werden soll. Ich habe JavaScript deshalb auch vor jQuery behandelt.
Ehe wir uns richtig auf jQuery stürzen, lohnt sich allerdings ein kurzer Blick auf das Document Object Model (DOM). jQuery ist schließlich in erster Linie eine Bibliothek zur browserunabhängigen Behandlung des DOM.
6.1 Document Object Model (DOM)
Baumstruktur
Im Computerspeicher werden HTML-Dokumente ...
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