问题
I am new to Google apps script and need help. I an trying to achieve the following -
Set a trigger for lost-focus of a textbox in google form. The code in this event will be A. Get the value of a textbox B. Set the value of a textbox
回答1:
Unfortunately this is not currently possible with Google Apps Script and Google Forms. Apps Script can be triggered by the submission of a Form, but it cannot interact with the Form in the users browser.
It is possible to build a form entirely in Apps Script (using HTML) which would allow you full control over the user experience, but you lose access to the functionality provided by Google Forms.
来源：https://stackoverflow.com/questions/26977954/google-apps-script-run-javascript-as-the-form-is-being-filled-by-users