fd.spRendered is not a function showing from browser console

I apply the fd.rendered() in Form Designer JavaScript, however after I saved the form and run from SharePoint 2016, i can see this error from browser console: fd.spRendered is not a function.

I try google but it seems like only me get this error.

Dear @Geo47,
This is the code for Plumsail Forms product (O365 and SP2019), not Forms Designer. For Forms Designer code samples, please, check our documentation here - Documentation - SharePoint Forms Designer


I see. Is that possible to get SharePoint current username/ID and set into the fields using Form Designer? So that, every time create a new form the ID field will auto get the current login user and populate the value in the related fields.

Dear @Geo47,
Try code from here: