crocks/core/isSame.js

A collection of well known Algebraic Datatypes for your utter enjoyment.

/** @license ISC License (c) copyright 2017 original and current authors */
/** @author Ian Hofmann-Hicks (evil) */

// isSame : (a, b) -> Boolean
function isSame(x, y) {
  if(x === y) {
    return x !== 0 || 1 / x === 1 / y
  }

  return x !== x && y !== y
}

module.exports = isSame