How can I compare three elements in js?

Question

When inner has the same text, it doesn't return true. I tried to make variables with these values, doesn't work

const btns = document.querySelectorAll('.btn')
if (btns[0].innerHTML == btns[1].innerHTML == btns[2].innerHTML ){
    //do smth
}

Answer 1

you need to compare one and then the other like this

if (first === second && second === third) {}

in your case it would be like this

const btns = document.querySelectorAll('.btn')
if (
btns[0].innerHTML == btns[1].innerHTML &&
btns[1].innerHTML == btns[2].innerHTML){
    //do smth
}