Chart.js/docs/getting-started/integration.md

Integration

Chart.js can be integrated with plain JavaScript or with different module loaders. The examples below show how to load Chart.js in different systems.

Script Tag

<script src="path/to/chartjs/dist/Chart.js"></script>
<script>
    var myChart = new Chart(ctx, {...});
</script>

Common JS

var Chart = require('chart.js');
var myChart = new Chart(ctx, {...});

Bundlers (Webpack, Rollup, etc.)

import Chart from 'chart.js';
var myChart = new Chart(ctx, {...});

Require JS

Important: RequireJS can not load CommonJS module as is, so be sure to require one of the UMD builds instead (i.e. dist/Chart.js, dist/Chart.min.js, etc.).

require(['path/to/chartjs/dist/Chart.min.js'], function(Chart){
    var myChart = new Chart(ctx, {...});
});

Note: in order to use the time scale, you need to make sure one of the available date adapters and corresponding date library are fully loaded before requiring Chart.js. The date adapter for Moment.js is included with Chart.js, but you still need to include Moment.js itself if this is the date adapter you choose to use. You can either use a shim:

require.config({
    shim: {
        'chartjs': {
            deps: ['moment']    // enforce moment to be loaded before chartjs
        }
    },
    paths: {
        'chartjs': 'path/to/chartjs/dist/Chart.min.js',
        'moment': 'path/to/moment'
    }
});

require(['chartjs'], function(Chart) {
    new Chart(ctx, {...});
});

or simply use two nested require():

require(['moment'], function() {
    require(['chartjs'], function(Chart) {
        new Chart(ctx, {...});
    });
});