Repeat a track without having to push play over and over again

bandamp-repeat.js

class BandcampPlay {
    constructor() {

    }

    #interval = null;

    repeatAll() {
        var self = this;
        if (this.#interval == null) {
            this.#interval = setInterval(function() {
                // check twice with a sleep indicator
                var playing = true;
                for (var i = 0; i < 2; i++) {
                    playing = self.checkPlayingAll();
                }

                if (!playing) {
                    // grab the first element
                    var $par = $('tr.track_row_view div.play_status').first();
                    $par.click();
                }
            }, 1000);
        }
    }

    checkPlayingAll() {
        var playing = false;
        $('tr.track_row_view div.play_status').each(function() {
            if ($(this).hasClass('playing')) {
                playing = true;
            }
        });
        return playing;
    }

    // single track use
    repeat(buttonName) {
        if (buttonName == null) {
            buttonName = '.playbutton';
        }
        if (this.#interval == null) {
            var $b = $(buttonName);
            this.#interval = setInterval(function() {
                if (!$b.hasClass('playing')) {
                    $b.click();
                }
            }, 1000);
        }
    }

    stopRepeat() {
        clearInterval(this.#interval);
        this.#interval = null;
    }

    play(buttonName) {
        if (buttonName == null) {
            buttonName = '.playbutton';
        }

        var $b = $(buttonName);
        if (!$b.hasClass('playing')) {
            $b.click();
        }
    }

    stop(buttonName) {
        if (buttonName == null) {
            buttonName = '.playbutton';
        }

        var $b = $(buttonName);
        if ($b.hasClass('playing')) {
            $b.click();
        }
    }
}