How can I add interactivity to my charts?

How can I add interactivity to my charts?

You can add interactivity to your charts using libraries like D3.js or Chart.js. What type of interactivity are you looking for?

I want users to be able to hover over data points and see more information.

You can achieve that by using tooltips. In D3.js, you can create a tooltip that appears on mouseover events. Would you like a code example?

Yes, please! That would be really helpful.

Here's a simple example:

const tooltip = d3.select('body').append('div')
    .attr('class', 'tooltip')
    .style('opacity', 0);

svg.selectAll('circle')
    .data(data)
    .enter()
    .append('circle')
    .on('mouseover', function(event, d) {
        tooltip.transition().duration(200).style('opacity', .9);
        tooltip.html(d.info)
            .style('left', (event.pageX + 5) + 'px')
            .style('top', (event.pageY - 28) + 'px');
    })
    .on('mouseout', function(d) {
        tooltip.transition().duration(500).style('opacity', 0);
    });

This will show a tooltip with information when you hover over the circles.