Data Visualization with D3: Add Attributes to the Circle Elements

JavaScript
1

Tell us what’s happening:
//I know I need to substract the 2nd number in the array to the height, but I am unable to get this thing working. Any suggestion?

Your code so far


<body>
<script>
  const dataset = [
                [ 34,    78 ],
                [ 109,   280 ],
                [ 310,   120 ],
                [ 79,    411 ],
                [ 420,   220 ],
                [ 233,   145 ],
                [ 333,   96 ],
                [ 222,   333 ],
                [ 78,    320 ],
                [ 21,    123 ]
              ];


  const w = 500;
  const h = 500;

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

  svg.selectAll("circle")
     .data(dataset)
     .enter()
     .append("circle")
     // Add your code below this line
     
     .attr('cx', (d) => d[0])
     //.attr('cy', h - d => d[1])
     .attr('r', 5)
     


     // Add your code above this line

</script>
</body>

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.130 Safari/537.36.

Challenge: Add Attributes to the Circle Elements

Link to the challenge:
https://www.freecodecamp.org/learn/data-visualization/data-visualization-with-d3/add-attributes-to-the-circle-elements

2

solved. I just realized that I could do the substraction inside the callback function hehe so the cy would look like this:

.attr(‘cy’, (d) => h - d[1])