whole_func_string: function objectIs(x, y) {
    if (x === y) {
      return x !== 0 || 1 / x === 1 / y;
    }
    return x !== x && y !== y;
  }
func_code_string: function objectIs(x, y) {
    if (x === y) {
      return x !== 0 || 1 / x === 1 / y;
    }
    return x !== x && y !== y;
  }
func_documentation_string: Inlined Object.is polyfill. https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is