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Current File : /home/emeraadmin/public_html/node_modules/d3-selection/src/touch.js

import sourceEvent from "./sourceEvent";
import point from "./point";

export default function(node, touches, identifier) {
  if (arguments.length < 3) identifier = touches, touches = sourceEvent().changedTouches;

  for (var i = 0, n = touches ? touches.length : 0, touch; i < n; ++i) {
    if ((touch = touches[i]).identifier === identifier) {
      return point(node, touch);
    }
  }

  return null;
}