title: How to add commas when showTooltips is false in ChartJS
body: <p>I'm trying to add commas for the data in chartJS. I've tried some code like what is in this thread: <a href="https://stackoverflow.com/questions/25880767/chart-js-number-format">Chart.js number format</a>. But they use tooltip here; my setup is not using tooltips.</p>
  
  <p>Please see my code below.</p>
  
  <pre><code>options: {
          events: false,
          showTooltips: false,
          scales: {
              yAxes: [{
                  ticks: {
                      beginAtZero: true,
                      min: 0,
                      userCallback: function(value, index, values){
                          value = value.toString();
                          value = value.split(/(?=(?:...)*$)/);
                          value = value.join(',');
                          return value;
                      }
                  }
              }]
          },
          legend: {
              display: displayLegend
          },
          animation: {
              duration: 0,
              onComplete: function(){
                  var ctx = this.chart.ctx;
                  ctx.font = Chart.helpers.fontString(Chart.defaults.global.defaultFontFamily, 'normal', Chart.defaults.global.defaultFontFamily);
                  ctx.textAlign = 'center';
                  ctx.textBaseLine = 'bottom';
                  ctx.fillStyle = '#0b7707';
  
                  this.data.datasets.forEach(function(dataset){
                      console.log(dataset);
                      for(var i = 0; i &lt; dataset.data.length; i++){
                          for(var key in dataset._meta){
                              var model = dataset._meta[key].data[i]._model;
                              ctx.fillText(dataset.data[i], model.x, model.y - 13);
                          }
                      }
                  });
              }
          }
      }
  }
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/pekEn.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/pekEn.png" alt="enter image description here"></a></p>