set over two background-color in javascript setInterval()

let x = document.body; x.style.background-Color = x.style.background-Color == "yellow" ? "pink": "yellow";

CodePudding user response：

Try this:

var i = 0;
function change() {
  var doc = document.getElementById("background");
  var color = ["black", "blue", "brown", "green"];
  doc.style.backgroundColor = color[i];
  i = (i   1) % color.length;
}
setInterval(change, 1000);

<div id="background">&nbsp</div>