totype.findlastindex"></emu-xref>.</p>
  <p>When the `findLastIndex` method is called, the following steps are taken:</p>
  <emu-alg>
    1. Let _O_ be the *this* value.
    1. Perform ? ValidateTypedArray(_O_).
    1. Let _len_ be _O_.[[ArrayLength]].
    1. If IsCallable(_predicate_) is *false*, throw a *TypeError* exception.
    1. Let _k_ be _len_ - 1.
    1. Repeat, while _k_ &ge; 0,
      1. Let _Pk_ be ! ToString(ùîΩ(_k_)).
      1. Let _kValue_ be ! Get(_O_, _Pk_).
      1. Let _tes