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Which of the following browsers support the usage of the JavaScript logging library log4javascript?

(a) IE

(b) Safari

(c) Opera

(d) All of the mentioned

This question was addressed to me by my school principal while I was bunking the class.

Query is from Remote Logging topic in portion Parsing, Benchmarking and Logging of JavaScript

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The correct choice is (d) All of the mentioned

Easy explanation: Apache Log4j is a Java-based logging utility. It was originally written by Ceki Gülcü and is part of the Apache Logging Services project of the Apache Software Foundation. Since a major use of JavaScript logging is in browser testing, log4javascript is tested and works across all recent major browsers, including:

Internet Explorer 5+ for Windows

Mozilla, Firefox, Netscape

Google Chrome

Safari 1.3+

Opera 7.5+

WebKit

Konqueror 3.4+

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