To encode a URL in JavaScript, use the encodeURI() method.
Example
You can try to run the following code to encode a URL −
<!DOCTYPE html>
<html>
<body>
<button onclick="display()">Encode</button>
<p id="demo"></p>
<script>
function display() {
var encode = "welcome msg.jsp?name=åmit&sub=programming";
var result = encodeURI(encode);
document.getElementById("demo").innerHTML = result;
}
</script>
</body>
</html>