I have the current pull down on a leaflet map. To save time, our geojson files have been divided into 12 groups each referring to a certain month within the below years (60 files in all).
<option value="2018"> 2016 </option>
<option value="2018"> 2017 </option>
<option value="2018"> 2018 </option>
<option value="2019"> 2019 </option>
<option value="2020"> 2020 </option>
How can I assign these 12 different files to populate the coordinates when a given year is selected? Thx