Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
I’m profiling JavaScript using dynaTrace AJAX edition.
According to the tool’s “Hot Spots”, the following jQuery method is using the majority of execution time:
CLASS(*, *, undefined, *, undefined, false): false
…it has over 700 invocations on my page.
What is this call and how can I optimize it?
I’m using jQuery version 1.4.2. The performance issues are primarily in IE6 and IE7.
Most likely, you should be optimizing the selectors you’re passing into jQuery, not jQuery’s selector engine itself. Perhaps you could identify the most common selectors you use, or find a way to identify the slowest. We may be able to help optimize those if you provide them.