Javascript quiz part

Question

Help me I'm new to coding I'm trying to learn javascript..in this code I want that whenever someone click on the right answer button will change its color to green and if someone click on wrong answer it will turn to red I have tried but don't know how to do it correctly..
https://code.sololearn.com/W0I0B3W3eGx8/?ref=app

Answer 1

result() is a function so you should write

onclick = "result()"

document.Elementbyclassname=('btn') should be

document.getElementsByClassName('btn')

Answer 2

Wow thankyou mate😍

Answer 3

It is now showing an error

Answer 4

Thankyou as I have just started learning it I m very confuse of how this works ..and also what you have done is not understandable to me..but what you have done was I wanted to do.