google web app script - global variable on client side

Question

I have a WebApp which takes some values from a google sheet when it is opened. I want to store a global variable so that I do not have to make a call to the server all the time

Answer 1

The easiest way is store it as a global variable:

var TEST;//Declare global
google.script.run.withSuccessHandler(yourCallBack2).getPNInfo(body);
  
  function yourCallBack2(pinfo) {
    console.log("callback called");
    TEST = pinfo[0];//set global
  }
    
  function updateQ(){   
    var ea = TEST;//get global
    console.log(ea);
  }

Other ways to persist information would be to use

• Cookies
• Session/Local storage

google.script.run is a async call. So, updateQ might run before yourCallBack2 and your global variable TEST may be undefined by then.