Your age across the Milkyway

Our age on Earth is based on ‘Earth years’. Our age is the number of times the Earth has orbited the Sun since the day we were born. If we were to live on another planet in the Solar System our age would be different because each planet takes a different amount of time to orbit the Sun. In other words, each planet has a different year length. source

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8">
        <title>D3 orbit on planets</title>
        <script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>

</style>

</head>
    <body>

<h3>Your age across the Milkyway</h3>

var dataset = // ow long it takes each planet to orbit the Sun
        [
            { "planet": "Mercury", "orbit" : 0.241 },
            { "planet": "Venus", "orbit" : 0.615},
            { "planet": "Earth", "orbit" : 1},
            { "planet": "Mars", "orbit" : 1.881},
            { "planet": "Jupiter", "orbit" : 11.86},
            { "planet": "Saturn", "orbit" : 29.46},
            { "planet": "Uranus", "orbit" : 84.01},
            { "planet": "Neptune", "orbit" : 164.8}
        ];
 
 
        function handleClick(event){
            console.log(document.getElementById("myVal").value)
            orbit(document.getElementById("myVal").value)
            return false;
        }

myUl = d3.select("body")
                .append("ul")
                .selectAll("ul");

myList = myUl
                .data(dataset)
                .enter()
                .append("li")
                .text(function (d) { 
                    return "need ya age to know" + " years on " + d["planet"];
                });

function orbit(val){
            myList
            .text(function (d) { 
                return (val/d["orbit"]).toFixed(2) + " years on " + d["planet"]; //divide your age in Earth years by the length of the planet's year in Earth years to get you age in that planets years
            });
        };

</script>

</body>
</html>

Modified http://d3js.org/d3.v3.min.js to a secure url

https://d3js.org/d3.v3.min.js