Function formatPath

d3-3.2.8/test/assert.js:147–149

(path)

}

function formatPath(path) {
  return path.replace(reNumber, formatNumber);
}

function formatNumber(s) {
  return Math.abs((s = +s) - Math.floor(s)) < 1e-6 ? Math.floor(s) : s.toFixed(6);