Database mapping in Leaflet with (JSON, AJAX) - json

Question

I get this JSON from DeviceNewController
public function index(Request $request)
{
$device_new = Device_new::with(['device']);
return Device_new::all()->toJson();
}
And when I wrote AJAX in view blade, it show me data from DB in console.
<script>
var newdev = new XMLHttpRequest();
newdev.open('GET', '/devices_new');
newdev.onload = function() {
console.log(newdev.responseText);
};
newdev.send();
</script>
But I need to pass it in Leaflet script and write all data on map (coordinates, markers, device info)
When I set all in one script, there is no data in console, I can not fix it.
var newdev = new XMLHttpRequest();
newdev.open('GET', '/devices_new');
newdev.onload = function() {
var coordinates = newdev.responseText;
for (var i=0; i < coordinates.length; i++) {
if(coordinates[i].x && coordinates[i].y){
var marker = L.marker([coordinates[i].x, coordinates[i].y])
.bindPopup("Device: "+coordinates[i].device_type+'<br>' + "Time: "+coordinates[i].datetime)
.addTo(map);
}
};
};
newdev.send();
Did i make a mistake somewhere, is this correct???

Answer 1

You miss understood Ajax. Ajax is a function from JQuery, a JS library.
The ajax() method is used to perform an AJAX (asynchronous HTTP) request.
You have to add the JQuery library to your source, then you can create a Ajax call.
https://www.w3schools.com/jquery/ajax_ajax.asp
$.ajax({url: "/devices_new", success: function(result){
//result = JSON.parse(result); // If your result is not a json Object.
var coordinates = result;
for (var i=0; i < coordinates.length; i++) {
if(coordinates[i].x && coordinates[i].y){
var marker = L.marker([coordinates[i].x, coordinates[i].y])
.bindPopup("Device: "+coordinates[i].device_type+'<br>' + "Time: "+coordinates[i].datetime)
.addTo(map);
}
}
},
error: function(xhr){
alert("An error occured: " + xhr.status + " " + xhr.statusText);
}});
});

Answer 2

I make it on this way, and its working.
<script>
$(document).ready(function() {
$.ajax({
/* the route pointing to the post function */
url: '/device_new',
type: 'GET',
data: {
message: $(".getinfo").val()
},
dataType: 'json',
/* remind that 'data' is the response of the AjaxController */
success: function(data) {
var coordinates = data;
for (var i = 0; i < coordinates.length; i++) {
if (coordinates[i].x && coordinates[i].y) {
var marker = L.marker([coordinates[i].x, coordinates[i].y])
.bindPopup("Device: " + coordinates[i].device_type + '<br>' + "Time: " + coordinates[i].datetime)
.addTo(map);
}
}
console.log(data);
},
error: function(data) {
console.log(data);
}
});
});
</script>