JS - 间隔后更改 HREF

Question

I am trying to make javascript that will change href after some interval. I made something but it´s not working...

<script>
$(document).ready(function() 
{
setInterval(fetch_quote,5000);
});
function fetch_quotes() {
var x = document.getElementById("Buttonn");
if document.getElementById("Buttonn").href="#primary";{
document.getElementById("Buttonn").href="#volby";
} else {
document.getElementById("Buttonn").href="#primary";
}
}
</script>

I am just starting with JS so i dont have some big knowledge...

Answer 1

Try this

 $(document).ready(function() { setInterval(fetch_quotes, 1000); }); function fetch_quotes() { var x = document.getElementById("Buttonn"); // if href containces '#primary' if (x.href.includes('#primary')) { // set to '/#volby' x.href = '/#volby'; } else { // set to '/#primary' x.href = '/#primary'; } }

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <a id="Buttonn" href="/#primary">