As compared to Drupal 6, using Drupal 7 you can no longer rely on $() as the jQuery function because it’s simply not recognized. It should be taken into account in order to ensure that there are no conflicts between JavaScript libraries that are possibly used on a site.

In this article you will learn how to achieve high performance of your Drupal website without virtually any knowledge of coding, server configuration or the command line use.

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Some php generated content, for example, a view or some variable, is often to be inserted in the middle of the node or block.