Is Contains Condition for IF Action Possible?

Summary:

Is Contains condition for IF Action possible?

Content (required):

I am writing a code which compares a variable if it is contained in the other variables. Is contains condition possible for expression editor. Currently using the $co but it shows a error that it is not defined.

Also, I would like to have a reference or documentation for possible operations for the expression editor in Visual Builder

Version (include the version you are using, if applicable):

22.10.1

Code Snippet (add any code snippets that support your topic, if applicable):

    "if": {

      "module": "vb/action/builtin/ifAction",

      "parameters": {

        "condition": "[[ $page.variables.SearchVar $co ($page.variables.AccountName || $page.variables.ContactName) ]]"