How I can change the format of the numbers on jquery count-to? [duplicate]

Hi and thanks for reading me. I am using a Jquery function to count numbers but I would like to add commas to the numbers (in addition to a prefix), but I can’t find a way to do it so far. I tried using formatter: function (value, options) {return value.toFixed(options.decimals).replace(/B(?=(d{3})+(?!d))/g,","); but it doesn’t work yet. 🙁

My code is the following:

Main.js file:

$('.count-item').each(function(i) {
            $(this).appear(function() {
                var number = $(this).find('.count-to').data('countto');
                $(this).find('.count-to').countTo({from: 0, to: number, speed: 1500, refreshInterval: 10, formatter: function (value, options) {
           return value.toFixed(options.decimals).replace(/B(?=(d{3})+(?!d))/g, ",");
        }
                    
                });
            });
        });

plugins.js file:

(function($) {
    $.fn.countTo = function(options) {
        // merge the default plugin settings with the custom options
        options = $.extend({}, $.fn.countTo.defaults, options || {});

        // how many times to update the value, and how much to increment the value on each update
        var loops = Math.ceil(options.speed / options.refreshInterval),
            increment = (options.to - options.from) / loops;

        return $(this).each(function() {
            var _this = this,
                loopCount = 0,
                value = options.from,
                interval = setInterval(updateTimer, options.refreshInterval);

            function updateTimer() {
                value += increment;
                loopCount++;
                $(_this).html(value.toFixed(options.decimals));

                if (typeof(options.onUpdate) == 'function') {
                    options.onUpdate.call(_this, value);
                }

                if (loopCount >= loops) {
                    clearInterval(interval);
                    value = options.to;

                    if (typeof(options.onComplete) == 'function') {
                        options.onComplete.call(_this, value);
                    }
                }
            }
        });
    };

    $.fn.countTo.defaults = {
        from: 0,  // the number the element should start at
        to: 100,  // the number the element should end at
        speed: 500,  // how long it should take to count between the target numbers
        refreshInterval: 100,  // how often the element should be updated
        decimals: 0,  // the number of decimal places to show
        onUpdate: null,  // callback method for every time the element is updated,
        onComplete: null,  // callback method for when the element finishes updating
        formatter: function (value, options) {
           return value.toFixed(options.decimals).replace(/B(?=(d{3})+(?!d))/g, ",");
        }
    };
})(jQuery);

Index.html file:

<div class="count-item mb-sm-40">
                  <div class="count-icon"><span class="icon-piechart"></span></div>
                  <h3 class="count-to font-alt" data-countto=100></h3>
                  <h5 class="count-title font-serif">Siniestralidad (%)</h5>
                </div>

Anyone know what I could do about it or if there is a solution? I can’t find anything until now

Thanks for the help