google.script.run.withSuccessHandler() returns Undefined
问题 I created an array in a separate GS file using the code provided below. I tried calling it in my HTML file. My goal is to compare the contents the array to the parameter email . However, the value returned by google.script.run.withSuccessHandler() is undefined //in GS function mailGetter() { //open sheet var sheet = SpreadsheetApp.openByUrl("https://sheet.url").getSheetByName("Email Sheet").activate(); //get size of given row range var row_data_email = sheet.getRange("C2:C").getValues(); var