Updated: 16 September 2021
Bind data to all p elements in the DOM, even if they don’t exist yet.
d3.select("body") // Find body, pass reference to next step in chain. .selectAll("p") // Selects all p in DOM. Returns empty selection. .data(mydata) // Parse and count data. Following methods called n times. .enter() // Creates n new placeholder elements apparently. .append("p") // Swap placeholder for p element. .text("Hello World"); // Insert text value to p.