1var mixedChart = new Chart(ctx, {
2   type: 'bar',
3   data: {
4       datasets: [{
5           label: 'Bar Dataset',
6           data: [10, 20, 30, 40],
7           // this dataset is drawn below
8           order: 2
9       }, {
10           label: 'Line Dataset',
11           data: [10, 10, 10, 10],
12           type: 'line',
13           // this dataset is drawn on top
14           order: 1
15       }],
16       labels: ['January', 'February', 'March', 'April']
17   },
18   options: options
19});

1var mixedChart = new Chart(ctx, {
2    type: 'bar',
3    data: {
4        datasets: [{
5            label: 'Bar Dataset',
6            data: [10, 20, 30, 40],
7            // this dataset is drawn below
8            order: 1
9        }, {
10            label: 'Line Dataset',
11            data: [10, 10, 10, 10],
12            type: 'line',
13            // this dataset is drawn on top
14            order: 2
15        }],
16        labels: ['January', 'February', 'March', 'April']
17    },
18    options: options
19});