Date selection tool in Bootstrap showing blank field

I am currently working on implementing a bootstrap datepicker to update layer dates on my website. However, I am facing an issue where the calendar dropdown does not appear when I click on the datepicker box and instead it just shows an empty box.

My goal is to integrate the datepicker within a Leaflet textbox control and insert the HTML directly using the .innerHTML method. Below is the code for the Leaflet textbox control and the datepicker itself.

L.Control.textbox = L.Control.extend({
    // Code omitted for brevity
});

L.control.textbox = function(opts) { return new L.Control.textbox(opts);}
// Code omitted for brevity 

$('#datePicker').datepicker({
        format: 'yyyy-mm-dd',
        startDate: endDates.slice(0),
        endDate: endDates.slice(-1),
        autoclose: true,
        // Code omitted for brevity
    });

Where endDates represents a list of selectable dates for the datepicker in the format:

['2021-05-30', '2021-05-20', '2021-05-10'....]

In my research, I have discovered that the order in which CSS and JS files are imported at the beginning of my main HTML page can impact the functionality. Therefore, I have included the scripts and CSS below (using pug as my templating engine):

link(rel='stylesheet', href='https://fonts.googleapis.com/css?family=Jost&display=swap rel="stylesheet"')
// CSS links omitted for brevity

script(src='/javascript/jquery-3.3.1.min.js')
// JS script links omitted for brevity
script(src='/javascript/bootstrap-datepicker.js')

Answer №1

A solution that worked for this issue was to enclose the datepicker within a function like

$(document).ready(function() { })
.

The modified datepicker function is as follows:

$(document).ready(function() {
    $('#datePicker').datepicker({
        format: 'yyyy-mm-dd',
        startDate: endDates.slice(0),
        endDate: endDates.slice(-1),
        autoclose: true,
        // enable or disable dates based on whether they are included in the list
        beforeShowDay: function(date){
            tdate = date.getFullYear() + '-' + (('0'+(date.getMonth()+1)).slice(-2)) + '-' + (('0'+date.getDate()).slice(-2))
            if (endDates.includes(tdate)){
                return true;
            }
            else {
                return false;
            }
        },
    });
});

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