How we can use jquery language to find all the jiras that has no comments

[Rick]

I need to use jquery language to create a filter that filter all the jiras that has been created over 24 hours but no comments in there. I searched we can put "comment" field in the jquery but it can only use it to search the jira that contain comment text.

[Payne]

I think you mean JQL (Jira Query Language) rather than jquery (a Javascript library).

There is a "field" called "Number of Comments" that can be used like this:

"Number of Comments" = 0

For the "created over 24 hours" portion (I assume you mean created more than 24 hours ago), you can use this:

created < -24h

So, you can combine them into 

"Number of Comments" = 0 AND created < -24h