Map Center and Marker create based on text input - google-maps

Question

I want to define the map center and marker based on the text input HTML
It is work when i put lat/long on input text, but i need to press enter to make it work, i expected it will work when the map load without press enter,
<a id="myloc" type="text">-7.3344454, 112.7898796</a>
<button onclick="w3Load()">Load The Map</button>
<div id="map"></div>
The Java script :
function initAutocomplete() {
var input11 = document.getElementById("myloc").value
var input23 = new google.maps.LatLng(input11);
//var input23 = new google.maps.LatLng(document.getElementById("pac-input").value;
var map = new google.maps.Map(document.getElementById('map'), {
//center: {lat: -33.8688, lng: 151.2195},
center: input23,
zoom: 13,
mapTypeId: 'roadmap'
});
// Create the search box and link it to the UI element.
var input = document.getElementById('myloc');
var searchBox = new google.maps.places.SearchBox(input);
map.controls[google.maps.ControlPosition.TOP_LEFT].push(input);
// Bias the SearchBox results towards current map's viewport.
map.addListener('bounds_changed', function() {
searchBox.setBounds(map.getBounds());
});
var markers = [];
// Listen for the event fired when the user selects a prediction and retrieve
// more details for that place.
searchBox.addListener('places_changed', function() {
var places = searchBox.getPlaces();
if (places.length == 0) {
return;
}
// Clear out the old markers.
markers.forEach(function(marker) {
marker.setMap(null);
});
markers = [];
// For each place, get the icon, name and location.
var bounds = new google.maps.LatLngBounds();
places.forEach(function(place) {
if (!place.geometry) {
console.log("Returned place contains no geometry");
return;
}
var icon = {
url: place.icon,
size: new google.maps.Size(71, 71),
origin: new google.maps.Point(0, 0),
anchor: new google.maps.Point(17, 34),
scaledSize: new google.maps.Size(25, 25)
};
// Create a marker for each place.
markers.push(new google.maps.Marker({
map: map,
icon: icon,
title: place.name,
position: place.geometry.location
}));
if (place.geometry.viewport) {
// Only geocodes have viewport.
bounds.union(place.geometry.viewport);
} else {
bounds.extend(place.geometry.location);
}
});
map.fitBounds(bounds);
});
}
function mapLoad(){
document.getElementById("map").style.display = 'block';
google.maps.event.trigger(map, 'resize');
}
i expected it will work when the map load without press enter, because the lat long is generated automatically based on another input form

Answer 1

I get a javascript error with the code in your question: InvalidValueError: setCenter: not a LatLng or LatLngLiteral with finite coordinates: in property lat: NaN is not an accepted value. because input11 is null.
I believe what you want to do is:
make your element with id="myloc" an HTML <input> element (text) and set its value to your comma separated string of latitude,longitude coordinates.
<input id="myloc" type="text" value="-7.3344454, 112.7898796" />
parse the .value of that element to separate out the two numbers (the google.maps.LatLng object takes two numbers as arguments, not a comma separated string):
var input11 = document.getElementById("myloc").value
var coords = input11.split(",");
var input23 = new google.maps.LatLng(coords[0], coords[1]);
use the resulting google.maps.LatLng to initialize the center of your map and for the position of the marker:
var map = new google.maps.Map(document.getElementById('map'), {
center: input23,
zoom: 13,
mapTypeId: 'roadmap'
});
var marker = new google.maps.Marker({
map: map,
position: map.getCenter()
})
Putting it all together:
function initAutocomplete() {
var input11 = document.getElementById("myloc").value
var coords = input11.split(",");
var input23 = new google.maps.LatLng(coords[0], coords[1]);
var map = new google.maps.Map(document.getElementById('map'), {
center: input23,
zoom: 13,
mapTypeId: 'roadmap'
});
var marker = new google.maps.Marker({
map: map,
position: map.getCenter()
});
proof of concept fiddle
code snippet:
function initAutocomplete() {
var input11 = document.getElementById("myloc").value
var coords = input11.split(",");
var input23 = new google.maps.LatLng(coords[0], coords[1]);
var map = new google.maps.Map(document.getElementById('map'), {
center: input23,
zoom: 13,
mapTypeId: 'roadmap'
});
var marker = new google.maps.Marker({
map: map,
position: map.getCenter()
})
// Create the search box and link it to the UI element.
var input = document.getElementById('myloc');
var searchBox = new google.maps.places.SearchBox(input);
map.controls[google.maps.ControlPosition.TOP_LEFT].push(input);
// Bias the SearchBox results towards current map's viewport.
map.addListener('bounds_changed', function() {
searchBox.setBounds(map.getBounds());
});
var markers = [];
// Listen for the event fired when the user selects a prediction and retrieve
// more details for that place.
searchBox.addListener('places_changed', function() {
var places = searchBox.getPlaces();
if (places.length == 0) {
return;
}
// Clear out the old markers.
markers.forEach(function(marker) {
marker.setMap(null);
});
markers = [];
// For each place, get the icon, name and location.
var bounds = new google.maps.LatLngBounds();
places.forEach(function(place) {
if (!place.geometry) {
console.log("Returned place contains no geometry");
return;
}
var icon = {
url: place.icon,
size: new google.maps.Size(71, 71),
origin: new google.maps.Point(0, 0),
anchor: new google.maps.Point(17, 34),
scaledSize: new google.maps.Size(25, 25)
};
// Create a marker for each place.
markers.push(new google.maps.Marker({
map: map,
icon: icon,
title: place.name,
position: place.geometry.location
}));
if (place.geometry.viewport) {
// Only geocodes have viewport.
bounds.union(place.geometry.viewport);
} else {
bounds.extend(place.geometry.location);
}
});
map.fitBounds(bounds);
});
}
html,
body,
#map {
height: 100%;
margin: 0;
padding: 0;
}
<input id="myloc" type="text" value="-7.3344454, 112.7898796" />
<div id="map"></div>
<!-- Replace the value of the key parameter with your own API key. -->
<script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk&libraries=places&callback=initAutocomplete" async defer></script>