Hide and show several maps using checkboxes-CodePudding

<body>
    <script>
        function mapin() {
            var map1 = L.map('map').setView([0,0],1);
            L.tileLayer('https://api.maptiler.com/maps/streets/{z}/{x}/{y}.png?key=RM234QFDXeTVS0G8RUEl',
            {attribution: '<a href="https://www.maptiler.com/copyright/" target="_blank">&copy;
MapTiler</a> <a href="https://www.openstreetmap.org/copyright" target="_blank">&copy; OpenStreetMap contributors</a>',}).addTo(map1);
            var markar = L.marker([51.5, -0.09]).addTo(map1);
        }
        function myFunction() {
            if(vehicle1.checked == 1){
                document.getElementById("map").style.display="block";
                mapin();
            }
            else{
                document.getElementById("map").innerHTML = ""
                
            }     
            if(vehicle2.checked == 1){
                document.getElementById("map2").innerHTML = "Option 2 checked"
            }
            else{
                document.getElementById("map2").innerHTML = ""
            }  
            if(vehicle3.checked == 1){
                document.getElementById("text3").innerHTML = "Option 3 checked"
            }
            else{
                document.getElementById("text3").innerHTML = ""
            }  
        }
    </script>
    <div >

        <div id="map"></div>
        <div id="map2"></div>
        <div><p id="text3"></p></div>
    </div>
    <div >
        <div >This is top<br>
            <input type="checkbox" id="vehicle1" name="option1" value="1" onclick="myFunction()">
            <label for="vehicle1"> this is option 1</label><br>
            <input type="checkbox" id="vehicle2" name="option2" value="2" onclick="myFunction()">
            <label for="vehicle2"> this is option 2</label><br>
            <input type="checkbox" id="vehicle3" name="option3" value="3" onclick="myFunction()">
            <label for="vehicle3"> this is option 3</label><br>
        </div>
    </div>
</body>

Here I am displaying/hiding different text using different checkboxes.

If I want to do the same thing for maps, how will I do so?

Hiding and showing different maps on checking and unchecking different checkboxes.

CodePudding user response：

You can instantiate as many maps as you like, even if they are currently hidden with style.display = "none". But make sure to call the invalidateSize() method once they are revealed.

Avoid "hiding" them by flushing the map container innerHTML. You would have to re-instantiate the map every time you reveal it. Just changing the display style to "none" should be enough.