JQuery Autocomplete Submit Form

I want to change the code below so I can submit the form linked to the autocomplete when one of the autocomplete options is clicked. As an example, if I type "lu" only the option "Blue" will be visible as an option. I want to summit the form as soon as I click on "Blue" and not have to press the button "Submit". Thank you all for your help.

Code:

<form id="myForm" autocomplete="off" action="{% url 'action' %}">

<div class="autocomplete" style="width:40%;">
<input id="myInput" type="text" name="symbol" placeholder="Placeholder">

</div>
<input type="submit">
</form>

<script>
function autocomplete(inp, arr) {    
var currentFocus;    
inp.addEventListener("input", function (e) {
var a, b, i, val = this.value;
closeAllLists();
if (!val) {
return false;
}
currentFocus = -1;
a = document.createElement("DIV");
a.setAttribute("id", this.id + "autocomplete-list");
a.setAttribute("class", "autocomplete-items");
this.parentNode.appendChild(a);

for (i = 0; i < arr.length; i++) {            
let ind = arr[i].toUpperCase().indexOf(val.toUpperCase());
if (ind >= 0) {                
b = document.createElement("DIV");                
b.innerHTML = arr[i].substr(0, ind);
b.innerHTML += "<strong>" + arr[i].substr(ind, val.length) + "</strong>";
b.innerHTML += arr[i].substr(ind + val.length);                
b.innerHTML += "<input type='hidden' value='" + arr[i] + "'>";                
b.addEventListener("click", function (e) {                    
inp.value = this.getElementsByTagName("input")[0].value;                    
closeAllLists();
});
a.appendChild(b);
}
}
});

inp.addEventListener("keydown", function (e) {
let x = document.getElementById(this.id + "autocomplete-list");
if (x) x = x.getElementsByTagName("div");
if (e.keyCode == 40) {
currentFocus++;
addActive(x);
} else if (e.keyCode == 38) { 
currentFocus--;
addActive(x);
} else if (e.keyCode == 13) {
e.preventDefault();
if (currentFocus > -1) {    
if (x) x[currentFocus].click();
*** I WANT TO SUBMIT "myForm" HERE ***
}
}
});

function addActive(x) {        
if (!x) return false;
removeActive(x);
if (currentFocus >= x.length) currentFocus = 0;
if (currentFocus < 0) currentFocus = (x.length - 1);        
x[currentFocus].classList.add("autocomplete-active");
}
function removeActive(x) {        
for (var i = 0; i < x.length; i++) { x[i].classList.remove("autocomplete-active");
}
}

function closeAllLists(elmnt) {

var x = document.getElementsByClassName("autocomplete-items");
for (var i = 0; i < x.length; i++) {
if (elmnt != x[i] && elmnt != inp) {
x[i].parentNode.removeChild(x[i]);
}
}
}

document.addEventListener("click", function (e) {
closeAllLists(e.target);
});
}


var options = ["Option A", "Blue"];

autocomplete(document.getElementById("myInput"), options);

</script>