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Upgrading jQuery – from 1.4.x to 1.6.x

The jQuery library, specifically its architecture of Ajax handling, has been significantly re-written in 1.5. We at Box love jQuery, but we had to skip version 1.5 because a quick jquery.js file replacement failed many of our automated test cases. After a couple of weeks of debugging, we finally migrated to version 1.6.1. In this post, I want to share my experience upgrading jQuery from 1.4.4 to 1.6.1. prop() and attr() prop() is a new method to retrieve a property value of a DOM object, while attr() is used to retrieve attribute values written in the HTML source. attr() used [ ... ]