The following is a code I have written to change a grid color to indigo upon clicking it, then removing the color upon the second click. However, I do not know how to rewrite the if-else statement using a ternary operator.

const grid1=document.querySelector(".cell01")
grid1.addEventListener("click", (e)=>{
    console.log(e);
    if (grid1.style.backgroundColor) {
      grid1.style.backgroundColor = "";
      } else {
        grid1.style.backgroundColor = "indigo";
      }
})

Thank you for your help in advance (:

Update Thanks for the answers! But now I have one more inquiry -- I wanted to try different ways of rewriting the same code, and came up with this:
grid1.style.backgroundColor=(grid1.style.backgroundColor!=true) ? "indigo" : "";

It did exactly what I wanted with the expression (grid1.style.backgroundColor==false), but not in the case of the former. Is there a reason why?