d3/addATooltipToAD3Element/solution.html

<style>
    .bar:hover {
        fill: brown;
    }
</style>

<body>
    <script>
        const dataset = [12, 31, 22, 17, 25, 18, 29, 14, 9];

        const w = 500;
        const h = 100;

        const svg = d3.select("body")
            .append("svg")
            .attr("width", w)
            .attr("height", h);

        svg.selectAll("rect")
            .data(dataset)
            .enter()
            .append("rect")
            .attr("x", (d, i) => i * 30)
            .attr("y", (d, i) => h - 3 * d)
            .attr("width", 25)
            .attr("height", (d, i) => d * 3)
            .attr("fill", "navy")
            .attr("class", "bar")
            // Add your code below this line
            .append('title')
            .text(d => d)


        // Add your code above this line

        svg.selectAll("text")
            .data(dataset)
            .enter()
            .append("text")
            .text((d) => d)
            .attr("x", (d, i) => i * 30)
            .attr("y", (d, i) => h - (d * 3 + 3))

    </script>
</body>