google form auto filling script for MCQ.

README.md

• paste in dev console
• call autofillAnswers function
• pass answer string eg. "DBCCBDBCADCBADBADABC"
• eg.

autofillAnswers("DBCCBDBCADCBADBADABC")

googleform.js

function getIntFromMCQ(optionStr) {
        const OptEnum = { 'A': 0, 'B': 1, 'C': 2, 'D': 3 }
        return OptEnum[optionStr]
} 

function autofillAnswers(answerSeriesStr) {
        let answers = answerSeriesStr.match(/\w/gm)

        for (let i=0; i<answers.length; i++) {
                let currQues = i
                let answer = answers[i]
                document.querySelectorAll('.freebirdFormviewerViewItemsItemItem')[currQues].children[1].children[0].children[0].children[0].children[getIntFromMCQ(answer)].querySelector('label').click()
        }
}

// usage: autofillAnswers("DBCCBDBCADCBADBADABC")