July 2012
Intermediate to advanced
288 pages
6h 12m
German
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Chapter 13. Netzwerkverbindungen
In diesem Kapitel zeigen wir Ihnen vier Techniken für die clientseitige Verwendung von JavaScript für Netzwerkverbindungen. Die erste Methode, bekannt als XMLHttpRequest, ist besonders im Umfeld der »Ajax«-Applikationsarchitektur verbreitet. Diese API ist bei Weitem die wichtigste und nimmt entsprechend den größten Teil dieses Kapitels ein. Außerdem behandeln wir hier die JSONP-Technik für die Arbeit mit Ajax-Netzwerkverbindungen mit dem <script>
-Tag. Daneben gehen wir auch aus »Server Push«- und »Comet«-Netzwerkverbindungen über die neue EventSource-API sowie auf bidirektionale Socket-Verbindungen mit WebSockets ein.
XMLHttpRequest verwenden
Browser definieren ihre HTTP-API über eine XMLHttpRequest-Klasse. Jede ...
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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.