Google Apps Script API
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    An enum representing the supported types of feedback. Feedback types can be accessed from FormApp.FeedbackType.

    // Open a form by ID and add a new list item.
    var form = FormApp.openById('1234567890abcdefghijklmnopqrstuvwxyz');
    var item = form.addListItem();
    item.setTitle('Do you prefer cats or dogs?');
    // Set "Dogs" as the correct answer to this question.
    item.setChoices([
      item.createChoice('Dogs', true),
      item.createChoice('Cats', false)]);
    // Add feedback which will be shown for correct responses; ie "Dogs".
    item.setFeedbackForCorrect(
        FormApp.createFeedback().setDisplayText("Dogs rule, cats drool.").build());
    
    Index

    Enumeration Members

    Enumeration Members

    CORRECT: number
    GENERAL: number
    INCORRECT: number