Spotify Apps API - Play/pause with an HTML element (JS)

spotify-apps-sandbox-click_to_play.js

/* Instantiate the global sp object; include models & views */
var sp = getSpotifyApi(1);
var models = sp.require("sp://import/scripts/api/models");
var player = models.player;

$('#play-me').click(function(){
    player.playing = !(player.playing);
    if (player.playing == true) {
        $('#play-me').empty().append('Playing!');
    } else {
        $('#play-me').empty().append('Paused');
    }
});