CocoRoboDesktop/pdf1.js/node_modules/core-js/internals/same-value-zero.js

// `SameValueZero` abstract operation
// https://tc39.es/ecma262/#sec-samevaluezero
module.exports = function (x, y) {
  // eslint-disable-next-line no-self-compare -- NaN check
  return x === y || x != x && y != y;
};