I read and search and study, but can't seem to write any JS out of my own head - this should be really simple but it will not work. I keep getting an error about an undefined variable "madlib7.html:411 Uncaught ReferenceError: populatefields is not defined at HTMLButtonElement.onclick"

I start with some urls that I paste into a textarea, then I click a button and first it splits the text into individual lines and stores them in variables. Next, I want to split each line by spaces and populate fields in an HTML form with select words from the resulting array via the use of innerhtml.

I know there is some way of looping through the processes, but I have not figured out how to do that yet so for now I am writing it all out the long way. I have not been able to figure out how to address the error message 'ReferenceError' from above.

Thanks for any and all help

Paul

populatefields(day1, location1, streamid1)  {
document.getElementById('PanLinks').value.split('\n');
        
var streamInfoLine1 = resultArr[0];
var streamInfoLine2 = resultArr[1];
var streamInfoLine3 = resultArr[2];
var streamInfoLine1 = resultArr[3];
var streamInfoLine2 = resultArr[4];
var streamInfoLine3 = resultArr[5];
var streamInfoLine1 = resultArr[6];
var streamInfoLine2 = resultArr[7];
var streamInfoLine3 = resultArr[8];
        
        
streamInfoLine1.split(' ');
var day1 = resultArr[0];
var location1 = resultArr[3];
var streamID1 = resultArr[4];
document.getElementById("location1").innerHTML= location1;
document.getElementById("time1").innerHTML= day1;
document.getElementById("streamid1").innerHTML= streamID1;
  }