JS - 在间隔后更改 HREF

Question

我正在尝试制作在一段时间后更改href的javascript。我做了一些东西，但它不起作用...

<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>

我刚刚开始使用JS，所以我没有一些大知识......

Answer 1

试试这个

$(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">