function getStackLine()

in perf.js [21:28]

• 8 lines of code
• 2 McCabe index (conditional complexity)

function getStackLine(rewind) {
  const stackRewind = rewind || 0;
  const stack = new Error().stack;
  const line0 = stack.split("\n")[stackRewind + 1];
  const sub0 = line0.indexOf("/");
  const sub1 = line0.lastIndexOf(":");
  return line0.substring(sub0, sub1);
}