This open source JavaScript logging framework is built on top of log4j, a popular Java logging framework. It helps developers track client-side errors and debug their applications by providing a customizable logging API.
Using this software is hassle-free as it only requires one include tag and one JavaScript line to initiate logging. A quick start tutorial for this is already available, and you can also witness the software in action by checking out the basic demo page.
Log4javascript is designed to work seamlessly on all major browsers, such as Safari 1.2 upwards, Internet Explorer 5 onwards on Windows, Opera 8.01 onwards, Firefox 1.0 onwards, and Konqueror 3.4 onwards. It is a flexible logging tool, offering a separate log4javascript window with advanced search and filtering features, a command line, and even the option to log to an in-page console or back to the server via Ajax.
The software's API is heavily based on log4j, which should be familiar to a lot of developers. It covers loggers, appenders, layouts, and levels, which are all key log4j concepts. Moreover, it is rigorously tested and comes with its own test runner and a suite of unit tests.
Log4javascript is fully supported on Firefox versions back to 0.6, other Mozilla-based browsers such as Netscape 7, Internet Explorer 5 and higher for Windows, Safari 1.3 and higher, Opera 8.01 and higher (pre-version 9 might have searching issues), and Konqueror 3.4.3 and higher. Partial support is offered for older Mozilla-based browsers and Opera 7.0 to 8.0, while Internet Explorer for Mac is currently unsupported.
Overall, log4javascript is a reliable and flexible software platform that can serve as a powerful debugging tool for JavaScript-based applications.
Version 1.4.1: N/A