Run results for: Multiple Attributes Performance

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4577.82 Safari/537.36

Browser: Chrome 93

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Default	11634.0 Ops/sec
each with setAttribute	10301.4 Ops/sec
setAttribute with loop	10070.6 Ops/sec
Detached	8970.6 Ops/sec

HTML Preparation code:

<script src="https://d3js.org/d3.v5.min.js"></script>

Script Preparation code:

const data = d3.range(100).map(() => ({
  x: Math.random() * 300,
  y: Math.random() * 150
}));

const svg = d3.select("body")
	.append("svg");
  
const circles = svg.selectAll("circle")
	.data(data)
  .enter()
  .append("circle")
  .attr("cx", d=>d.x)
  .attr("cy", d=>d.y)
  .attr("r", 2)
  .style("fill", "teal");

Tests:

Default
const data = d3.range(200).map(() => ({ x: Math.random() * 300, y: Math.random() * 150 })); const svg = d3.select("body") .append("svg"); const circles = svg.selectAll(null) .data(data) .attr("cx", d=>d.x) .attr("cy", d=>d.y) .attr("r", 2) .style("fill", "teal");
each with setAttribute
const data = d3.range(200).map(() => ({ x: Math.random() * 300, y: Math.random() * 150 })); const svg = d3.select("body") .append("svg"); const circles = svg.selectAll("circle") .data(data) .each((d, i, n) => { n[i].setAttribute("cx", d.x); n[i].setAttribute("cy", d.y); n[i].setAttribute("r", 2); }) .style("fill", "teal")
setAttribute with loop
const data = d3.range(200).map(() => ({ cx: Math.random() * 300, cy: Math.random() * 150, r: 2 })); const svg = d3.select("body") .append("svg"); const circles = svg.selectAll("circle") .data(data) .each((d, i, n) => { for(let key in d){ n[i].setAttribute(key, d[key]) } }) .style("fill", "teal")
Detached
const data = d3.range(200).map(() => ({ cx: Math.random() * 300, cy: Math.random() * 150, r: 2 })); const svg = d3.select("body") .append("svg") .remove(); const circles = svg.selectAll("circle") .data(data) .attr("cx", d=>d.x) .attr("cy", d=>d.y) .attr("r", 2) .style("fill", "teal"); d3.select("body") .append(() => svg.node())

Run results for: Multiple Attributes Performance

Default

each with setAttribute

setAttribute with loop

Detached