@perry-rylance/midi-to-milliseconds/lib/d3-binarytree/x.js

TypeScript library for resolving MIDI event times to milliseconds. Useful for syncing things like graphics to MIDI.

export function defaultX(d) {
  return d[0];
}

export default function(_) {
  return arguments.length ? (this._x = _, this) : this._x;
}