.8, 128.3, 128.4]
}
&lt;/script&gt;
</code></pre><p>The data source is also stored in the DOM, and linked to the chart using the data-attribute <code>data-chart-data-for</code>.</p>
<p>Keeping the data in a script tag, and explicitly referencing the chart (rather than say, using element hierarchy) through a data-attribute allows the data block to be placed anywhere on the page.  From a performance perspective, this should be close to the bottom of the page.</p>
<p>The structure of the data object is in a fo