JSFiddle - React, Tailwind, and code Playground

JavaScript

var markers = [];
markers.push({
    id: 'marker_1',
    lat: 59.441193,
    lon: 24.729494
});
markers.push({
    id: 'marker_2',
    lat: 99.441193,
    lon: -24.729494
});
markers.push({
    id: 'marker_3',
    lat: -59.441193,
    lon: -24.729494
});
// etc

for (var i = 0; i < markers.length; i++) {
    var esteObjecto = markers[i];
    var id = esteObjecto.id;
    var lat = esteObjecto.lat;
    var lon = esteObjecto.lon;
    console.log(id, lat, lon);
}